diff --git a/appveyor.yml b/appveyor.yml
index 91340e8a..c22c2085 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,22 +1,186 @@
-version: 1.0.{build}
-image: Visual Studio 2017
-environment:
-  matrix:
-    - platform: x86
-      configuration: Debug
-    - platform: x86
-      configuration: Release
-matrix:
-  fast_finish: false
-nuget:
-  project_feed: true
-before_build:
-- cmd: nuget restore
-build:
-  parallel: true
-  verbosity: normal
-artifacts:
-- path: shadowsocks-csharp\bin\x86\Release\Shadowsocks.exe
-  name: Shadowsocks-release.exe
-- path: shadowsocks-csharp\bin\x86\Debug\Shadowsocks.exe
-  name: Shadowsocks-debug.exe
+
+# Notes:
+#   - Minimal appveyor.yml file is an empty file. All sections are optional.
+#   - Indent each level of configuration with 2 spaces. Do not use tabs!
+#   - All section names are case-sensitive.
+#   - Section names should be unique on each level.
+
+#---------------------------------#
+#      general configuration      #
+#---------------------------------#
+
+# version format
+# Build version format is taken from UI if it is not set
+# version: 1.0.{build}
+
+# # branches to build
+# branches:
+#   # whitelist
+#   only:
+#     - master
+#     - production
+
+#   # blacklist
+#   except:
+#     - gh-pages
+
+
+#---------------------------------#
+#    environment configuration    #
+#---------------------------------#
+
+# Build worker image (VM template)
+image: Visual Studio 2017
+
+# scripts that are called at very beginning, before repo cloning
+# init:
+#   - git config --global core.autocrlf false
+
+
+# set clone depth
+clone_depth: 5                      # clone entire repository history if not defined
+
+
+# environment variables
+environment:
+  # my_var1: value1
+  # # this is how to set encrypted variable. Go to "Settings" -> "Encrypt YAML" page in account menu to encrypt data.
+  # my_secure_var1:
+  #   secure: FW3tJ3fMncxvs58/ifSP7w==
+  matrix:
+    - platform: x86
+      configuration: Debug
+    - platform: x86
+      configuration: Release
+
+# this is how to allow failing jobs in the matrix
+matrix:
+  fast_finish: false     # set this flag to immediately finish build once one of the jobs fails.
+
+# build cache to preserve files/folders between builds
+cache:
+  - packages -> **\packages.config  # preserve "packages" directory in the root of build folder but will reset it if packages.config is modified
+  # - '%LocalAppData%\NuGet\Cache'    # NuGet < v3
+  - '%LocalAppData%\NuGet\v3-cache' # NuGet v3
+
+
+# Automatically register private account and/or project AppVeyor NuGet feeds.
+# nuget:
+  # account_feed: true
+  # project_feed: true
+  # disable_publish_on_pr: true     # disable publishing of .nupkg artifacts to account/project feeds for pull request builds
+  # publish_wap_octopus: true       # disable publishing of Octopus Deploy .nupkg artifacts to account/project feeds
+
+#---------------------------------#
+#       build configuration       #
+#---------------------------------#
+
+# Build settings, not to be confused with "before_build" and "after_build".
+# "project" is relative to the original build directory and not influenced by directory changes in "before_build".
+build:
+  # parallel: true                  # enable MSBuild parallel builds
+  # publish_nuget: true             # package projects with .nuspec files and push to artifacts
+  # publish_nuget_symbols: true     # generate and publish NuGet symbol packages
+  # include_nuget_references: true  # add -IncludeReferencedProjects option while packaging NuGet artifacts
+
+  # MSBuild verbosity level
+  verbosity: normal  # quiet|minimal|normal|detailed
+
+
+# scripts to run before build
+before_build:
+  - cmd: nuget restore
+
+# to run your custom scripts instead of automatic MSBuild
+# build_script:
+
+# scripts to run after build (working directory and environment changes are persisted from the previous steps)
+after_build:
+  ps: |
+    function CalculateHash($file)
+    {
+        $newLine = "`r`n"
+        $text = (Split-Path $file -Leaf) + $newLine
+        $text += 'MD5' + $newLine
+        $text += (Get-FileHash $file -Algorithm MD5).Hash + $newLine
+        $text += 'SHA-1' + $newLine
+        $text += (Get-FileHash $file -Algorithm SHA1).Hash + $newLine
+        $text += 'SHA-256' + $newLine
+        $text += (Get-FileHash $file -Algorithm SHA256).Hash + $newLine
+        $text += 'SHA-512' + $newLine
+        $text += (Get-FileHash $file -Algorithm SHA512).Hash
+        return $text
+    }
+
+
+    $WorkingFolder = "$env:APPVEYOR_BUILD_FOLDER\working"
+    $ExeFileName = "Shadowsocks-$env:APPVEYOR_BUILD_VERSION-$env:CONFIGURATION.exe"
+    $ExeFile = "$WorkingFolder\$ExeFileName"
+    $ExeHashFile = "$Exefile.hash"
+
+    New-Item $WorkingFolder -ItemType Directory -Force
+    Copy-Item $env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\$env:PLATFORM\$env:CONFIGURATION\Shadowsocks.exe $WorkingFolder\Shadowsocks.exe
+    Copy-Item $WorkingFolder\Shadowsocks.exe $ExeFile
+
+    CalculateHash -file $Exefile | Out-File -FilePath $ExeHashFile
+
+    Push-AppveyorArtifact $ExeFile
+    Push-AppveyorArtifact $ExeHashFile
+
+    # Create and deploy the release zip
+    if ($env:configuration -eq 'Release')
+    {
+        $ReleaseFile = "$WorkingFolder\Shadowsocks.exe"
+        $HashFile = "$ReleaseFile.hash"
+        $ZipFile = "$WorkingFolder\Shadowsocks-$env:APPVEYOR_BUILD_VERSION.zip"
+        $ZipHashFile = "$ZipFile.hash"
+        # Calculate exe Hash and archieve both exe and hash to zip
+        CalculateHash -file $ReleaseFile | Out-File -FilePath $hashFile
+        7z a $ZipFile $ReleaseFile
+        7z a $ZipFile $HashFile
+        Push-AppveyorArtifact $ZipFile
+        # Calculate zip Hash
+        CalculateHash -file $ZipFile | Out-File -FilePath $ZipHashFile
+        Push-AppveyorArtifact $ZipHashFile
+    }
+
+# scripts to run *after* solution is built and *before* automatic packaging occurs (web apps, NuGet packages, Azure Cloud Services)
+# before_package:
+
+# to disable automatic builds
+#build: off
+
+
+#---------------------------------#
+#     deployment configuration    #
+#---------------------------------#
+
+# providers: Local, FTP, WebDeploy, AzureCS, AzureBlob, S3, NuGet, Environment
+# provider names are case-sensitive!
+deploy:
+
+    # Deploy to GitHub Releases
+  - provider: GitHub
+    auth_token:
+      secure: ZrRlVe3eWp1ccIVZcmFrI7vaCxwz5ewIMSmaPUTjMGyC1rVRlYm7nWWi6Pzkpe0A
+    description: '%APPVEYOR_BUILD_VERSION%'
+    artifact: Shadowsocks-%APPVEYOR_BUILD_VERSION%.zip, Shadowsocks-%APPVEYOR_BUILD_VERSION%.zip.hash
+    draft: true
+    prerelease: true
+    on:
+      branch: master                # release from master branch only
+      configuration: Release
+      APPVEYOR_REPO_TAG: true       # deploy on tag push only
+
+
+# # scripts to run before deployment
+# before_deploy:
+
+# # scripts to run after deployment
+# after_deploy:
+
+# # to run your custom scripts instead of provider deployments
+# deploy_script:
+
+# # to disable deployment
+#deploy: off
\ No newline at end of file
diff --git a/appveyor.yml.obsolete b/appveyor.yml.obsolete
new file mode 100644
index 00000000..d23aa997
--- /dev/null
+++ b/appveyor.yml.obsolete
@@ -0,0 +1,24 @@
+# Created by wongsyrone
+
+version: 1.0.{build}
+image: Visual Studio 2017
+environment:
+  matrix:
+    - platform: x86
+      configuration: Debug
+    - platform: x86
+      configuration: Release
+matrix:
+  fast_finish: false
+nuget:
+  project_feed: true
+before_build:
+- cmd: nuget restore
+build:
+  parallel: true
+  verbosity: normal
+artifacts:
+- path: shadowsocks-csharp\bin\x86\Release\Shadowsocks.exe
+  name: Shadowsocks-release.exe
+- path: shadowsocks-csharp\bin\x86\Debug\Shadowsocks.exe
+  name: Shadowsocks-debug.exe
diff --git a/appveyor.yml.sample b/appveyor.yml.sample
new file mode 100644
index 00000000..e3bd655a
--- /dev/null
+++ b/appveyor.yml.sample
@@ -0,0 +1,483 @@
+
+# Notes:
+#   - Minimal appveyor.yml file is an empty file. All sections are optional.
+#   - Indent each level of configuration with 2 spaces. Do not use tabs!
+#   - All section names are case-sensitive.
+#   - Section names should be unique on each level.
+
+#---------------------------------#
+#      general configuration      #
+#---------------------------------#
+
+# version format
+version: 1.0.{build}
+
+# you can use {branch} name in version format too
+# version: 1.0.{build}-{branch}
+
+# branches to build
+branches:
+  # whitelist
+  only:
+    - master
+    - production
+
+  # blacklist
+  except:
+    - gh-pages
+
+# Do not build on tags (GitHub and BitBucket)
+skip_tags: true
+
+# Start builds on tags only (GitHub and BitBucket)
+skip_non_tags: true
+
+# Skipping commits with particular message or from specific user
+skip_commits:
+  message: /Created.*\.(png|jpg|jpeg|bmp|gif)/      # Regex for matching commit message
+  author: John                                      # Commit author's username, name, email or regexp maching one of these.
+
+# Including commits with particular message or from specific user
+only_commits:
+  message: /build/                # Start a new build if message contains 'build'
+  author: jack@company.com        # Start a new build for commit of user with email jack@company.com
+
+# Skipping commits affecting specific files (GitHub only). More details here: /docs/appveyor-yml
+#skip_commits:
+#  files:
+#    - docs/*
+#    - '**/*.html'
+
+# Including commits affecting specific files (GitHub only). More details here: /docs/appveyor-yml
+#only_commits:
+#  files:
+#    - Project-A/
+#    - Project-B/
+
+# Do not build feature branch with open Pull Requests
+skip_branch_with_pr: true
+
+# Maximum number of concurrent jobs for the project
+max_jobs: 1
+
+#---------------------------------#
+#    environment configuration    #
+#---------------------------------#
+
+# Build worker image (VM template)
+image: Visual Studio 2015
+
+# scripts that are called at very beginning, before repo cloning
+init:
+  - git config --global core.autocrlf input
+
+# clone directory
+clone_folder: c:\projects\myproject
+
+# fetch repository as zip archive
+shallow_clone: true                 # default is "false"
+
+# set clone depth
+clone_depth: 5                      # clone entire repository history if not defined
+
+# setting up etc\hosts file
+hosts:
+  queue-server: 127.0.0.1
+  db.server.com: 127.0.0.2
+
+# environment variables
+environment:
+  my_var1: value1
+  my_var2: value2
+  # this is how to set encrypted variable. Go to "Settings" -> "Encrypt YAML" page in account menu to encrypt data.
+  my_secure_var1:
+    secure: FW3tJ3fMncxvs58/ifSP7w==
+
+# environment:
+#  global:
+#    connection_string: server=12;password=13;
+#    service_url: https://127.0.0.1:8090
+#
+#  matrix:
+#  - db: mysql
+#    provider: mysql
+#
+#  - db: mssql
+#    provider: mssql
+#    password:
+#      secure: $#(JFDA)jQ@#$
+
+# this is how to allow failing jobs in the matrix
+matrix:
+  fast_finish: true     # set this flag to immediately finish build once one of the jobs fails.
+  allow_failures:
+    - platform: x86
+      configuration: Debug
+    - platform: x64
+      configuration: Release
+
+# exclude configuration from the matrix. Works similarly to 'allow_failures' but build not even being started for excluded combination.
+  exclude:
+    - platform: x86
+      configuration: Debug
+
+# build cache to preserve files/folders between builds
+cache:
+  - packages -> **\packages.config  # preserve "packages" directory in the root of build folder but will reset it if packages.config is modified
+  - projectA\libs
+  - node_modules                    # local npm modules
+  - '%LocalAppData%\NuGet\Cache'    # NuGet < v3
+  - '%LocalAppData%\NuGet\v3-cache' # NuGet v3
+
+# enable service required for build/tests
+services:
+  - mssql2014           # start SQL Server 2014 Express
+  - mssql2014rs         # start SQL Server 2014 Express and Reporting Services
+  - mssql2012sp1        # start SQL Server 2012 SP1 Express
+  - mssql2012sp1rs      # start SQL Server 2012 SP1 Express and Reporting Services
+  - mssql2008r2sp2      # start SQL Server 2008 R2 SP2 Express
+  - mssql2008r2sp2rs    # start SQL Server 2008 R2 SP2 Express and Reporting Services
+  - mysql               # start MySQL 5.6 service
+  - postgresql          # start PostgreSQL 9.5 service
+  - iis                 # start IIS
+  - msmq                # start Queuing services
+  - mongodb             # start MongoDB
+
+# scripts that run after cloning repository
+install:
+  # by default, all script lines are interpreted as batch
+  - echo This is batch
+  # to run script as a PowerShell command prepend it with ps:
+  - ps: Write-Host 'This is PowerShell'
+  # batch commands start from cmd:
+  - cmd: echo This is batch again
+  - cmd: set MY_VAR=12345
+
+# enable patching of AssemblyInfo.* files
+assembly_info:
+  patch: true
+  file: AssemblyInfo.*
+  assembly_version: "2.2.{build}"
+  assembly_file_version: "{version}"
+  assembly_informational_version: "{version}"
+
+
+# Automatically register private account and/or project AppVeyor NuGet feeds.
+nuget:
+  account_feed: true
+  project_feed: true
+  disable_publish_on_pr: true     # disable publishing of .nupkg artifacts to account/project feeds for pull request builds
+  publish_wap_octopus: true       # disable publishing of Octopus Deploy .nupkg artifacts to account/project feeds
+
+#---------------------------------#
+#       build configuration       #
+#---------------------------------#
+
+# build platform, i.e. x86, x64, Any CPU. This setting is optional.
+platform: Any CPU
+
+# to add several platforms to build matrix:
+#platform:
+#  - x86
+#  - Any CPU
+
+# build Configuration, i.e. Debug, Release, etc.
+configuration: Release
+
+# to add several configurations to build matrix:
+#configuration:
+#  - Debug
+#  - Release
+
+# Build settings, not to be confused with "before_build" and "after_build".
+# "project" is relative to the original build directory and not influenced by directory changes in "before_build".
+build:
+  parallel: true                  # enable MSBuild parallel builds
+  project: MyTestAzureCS.sln      # path to Visual Studio solution or project
+  publish_wap: true               # package Web Application Projects (WAP) for Web Deploy
+  publish_wap_xcopy: true         # package Web Application Projects (WAP) for XCopy deployment
+  publish_wap_beanstalk: true     # Package Web Applications for AWS Elastic Beanstalk deployment
+  publish_wap_octopus: true       # Package Web Applications for Octopus deployment
+  publish_azure_webjob: true      # Package Azure WebJobs for Zip Push deployment
+  publish_azure: true             # package Azure Cloud Service projects and push to artifacts
+  publish_aspnet_core: true       # Package ASP.NET Core projects
+  publish_core_console: true      # Package .NET Core console projects
+  publish_nuget: true             # package projects with .nuspec files and push to artifacts
+  publish_nuget_symbols: true     # generate and publish NuGet symbol packages
+  include_nuget_references: true  # add -IncludeReferencedProjects option while packaging NuGet artifacts
+
+  # MSBuild verbosity level
+  verbosity: quiet|minimal|normal|detailed
+
+
+# scripts to run before build
+before_build:
+
+# to run your custom scripts instead of automatic MSBuild
+build_script:
+
+# scripts to run after build (working directory and environment changes are persisted from the previous steps)
+after_build:
+
+# scripts to run *after* solution is built and *before* automatic packaging occurs (web apps, NuGet packages, Azure Cloud Services)
+before_package:
+
+# to disable automatic builds
+#build: off
+
+#---------------------------------#
+#       tests configuration       #
+#---------------------------------#
+
+# to run tests against only selected assemblies and/or categories
+test:
+  assemblies:
+    only:
+      - asm1.dll
+      - asm2.dll
+
+  categories:
+    only:
+      - UI
+      - E2E
+
+# to run tests against all except selected assemblies and/or categories
+#test:
+#  assemblies:
+#    except:
+#      - asm1.dll
+#      - asm2.dll
+#
+#  categories:
+#    except:
+#      - UI
+#      - E2E
+
+# to run tests from different categories as separate jobs in parallel
+#test:
+#  categories:
+#    - A            # A category common for all jobs
+#    - [UI]         # 1st job
+#    - [DAL, BL]    # 2nd job
+
+# scripts to run before tests (working directory and environment changes are persisted from the previous steps such as "before_build")
+before_test:
+  - echo script1
+  - ps: Write-Host "script1"
+
+# to run your custom scripts instead of automatic tests
+test_script:
+  - echo This is my custom test script
+
+# scripts to run after tests
+after_test:
+
+# to disable automatic tests
+#test: off
+
+
+#---------------------------------#
+#      artifacts configuration    #
+#---------------------------------#
+
+artifacts:
+
+  # pushing a single file
+  - path: test.zip
+
+  # pushing a single file with environment variable in path and "Deployment name" specified
+  - path: MyProject\bin\$(configuration)
+    name: myapp
+
+  # pushing entire folder as a zip archive
+  - path: logs
+
+  # pushing all *.nupkg files in build directory recursively
+  - path: '**\*.nupkg'
+
+
+#---------------------------------#
+#     deployment configuration    #
+#---------------------------------#
+
+# providers: Local, FTP, WebDeploy, AzureCS, AzureBlob, S3, NuGet, Environment
+# provider names are case-sensitive!
+deploy:
+
+    # FTP deployment provider settings
+  - provider: FTP
+    protocol: ftp|ftps|sftp
+    host: ftp.myserver.com
+    username: admin
+    password:
+      secure: eYKZKFkkEvFYWX6NfjZIVw==
+    folder:
+    application:
+    active_mode: false
+    beta: true      # enable alternative FTP library for 'ftp' and 'ftps' modes
+    debug: true     # show complete FTP log
+
+    # Amazon S3 deployment provider settings
+  - provider: S3
+    access_key_id:
+      secure: ABcd==
+    secret_access_key:
+      secure: ABcd==
+    bucket: my_bucket
+    folder:
+    artifact:
+    set_public: false
+
+    # Azure Blob storage deployment provider settings
+  - provider: AzureBlob
+    storage_account_name:
+      secure: ABcd==
+    storage_access_key:
+      secure: ABcd==
+    container: my_container
+    folder:
+    artifact:
+
+    # Web Deploy deployment provider settings
+  - provider: WebDeploy
+    server: http://www.deploy.com/myendpoint
+    website: mywebsite
+    username: user
+    password:
+      secure: eYKZKFkkEvFYWX6NfjZIVw==
+    ntlm: false
+    remove_files: false
+    app_offline: false
+    do_not_use_checksum: true           # do not use check sum for comparing source and destination files. By default checksums are used.
+    sync_retry_attempts: 2              # sync attempts, max
+    sync_retry_interval: 2000           # timeout between sync attempts, milliseconds
+    aspnet_core: true                   # artifact zip contains ASP.NET Core application
+    aspnet_core_force_restart: true     # poke app's web.config before deploy to force application restart
+    skip_dirs: \\App_Data
+    skip_files: web.config
+    on:
+      branch: release
+      platform: x86
+      configuration: debug
+
+    # Deploying to Azure Cloud Service
+  - provider: AzureCS
+    subscription_id:
+      secure: fjZIVw==
+    subscription_certificate:
+      secure: eYKZKFkkEv...FYWX6NfjZIVw==
+    storage_account_name: my_storage
+    storage_access_key:
+      secure: ABcd==
+    service: my_service
+    slot: Production
+    target_profile: Cloud
+    artifact: MyPackage.cspkg
+
+    # Deploying to NuGet feed
+  - provider: NuGet
+    server: https://my.nuget.server/feed
+    api_key:
+      secure: FYWX6NfjZIVw==
+    skip_symbols: false
+    symbol_server: https://your.symbol.server/feed
+    artifact: MyPackage.nupkg
+
+    # Deploy to GitHub Releases
+  - provider: GitHub
+    artifact: /.*\.nupkg/           # upload all NuGet packages to release assets
+    draft: false
+    prerelease: false
+    on:
+      branch: master                # release from master branch only
+      APPVEYOR_REPO_TAG: true       # deploy on tag push only
+
+    # Deploying to a named environment
+  - provider: Environment
+    name: staging
+    on:
+      branch: staging
+      env_var1: value1
+      env_var2: value2
+
+# scripts to run before deployment
+before_deploy:
+
+# scripts to run after deployment
+after_deploy:
+
+# to run your custom scripts instead of provider deployments
+deploy_script:
+
+# to disable deployment
+#deploy: off
+
+#---------------------------------#
+#        global handlers          #
+#---------------------------------#
+
+# on successful build
+on_success:
+  - do something
+
+# on build failure
+on_failure:
+  - do something
+
+# after build failure or success
+on_finish:
+  - do something
+
+
+#---------------------------------#
+#         notifications           #
+#---------------------------------#
+
+notifications:
+
+  # Email
+  - provider: Email
+    to:
+      - user1@email.com
+      - user2@email.com
+    subject: 'Build {{status}}'                  # optional
+    message: "{{message}}, {{commitId}}, ..."    # optional
+    on_build_status_changed: true
+
+  # HipChat
+  - provider: HipChat
+    auth_token:
+      secure: RbOnSMSFKYzxzFRrxM1+XA==
+    room: ProjectA
+    template: "{message}, {commitId}, ..."
+
+  # Slack
+  - provider: Slack
+    incoming_webhook: http://incoming-webhook-url
+
+  # ...or using auth token
+
+  - provider: Slack
+    auth_token:
+      secure: kBl9BlxvRMr9liHmnBs14A==
+    channel: development
+    template: "{message}, {commitId}, ..."
+
+  # Campfire
+  - provider: Campfire
+    account: appveyor
+    auth_token:
+      secure: RifLRG8Vfyol+sNhj9u2JA==
+    room: ProjectA
+    template: "{message}, {commitId}, ..."
+
+  # Webhook
+  - provider: Webhook
+    url: http://www.myhook2.com
+    headers:
+      User-Agent: myapp 1.0
+      Authorization:
+        secure: GhD+5xhLz/tkYY6AO3fcfQ==
+    on_build_success: false
+    on_build_failure: true
+    on_build_status_changed: true
diff --git a/nuget.config b/nuget.config
deleted file mode 100644
index 28c78837..00000000
--- a/nuget.config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-    <config>
-        <add key="repositoryPath" value="shadowsocks-csharp\3rd" />
-    </config>
-</configuration>
diff --git a/shadowsocks-csharp/FodyWeavers.xsd b/shadowsocks-csharp/FodyWeavers.xsd
index e9cd8f0e..a96b3592 100644
--- a/shadowsocks-csharp/FodyWeavers.xsd
+++ b/shadowsocks-csharp/FodyWeavers.xsd
@@ -4,7 +4,6 @@
   <xs:element name="Weavers">
     <xs:complexType>
       <xs:all>
-        <xs:element name="Caseless" minOccurs="0" maxOccurs="1" type="xs:anyType" />
         <xs:element name="Costura" minOccurs="0" maxOccurs="1">
           <xs:complexType>
             <xs:all>
@@ -91,6 +90,7 @@
             </xs:attribute>
           </xs:complexType>
         </xs:element>
+        <xs:element name="Caseless" minOccurs="0" maxOccurs="1" type="xs:anyType" />
       </xs:all>
       <xs:attribute name="VerifyAssembly" type="xs:boolean">
         <xs:annotation>
diff --git a/shadowsocks-csharp/packages.config b/shadowsocks-csharp/packages.config
index 98767e3e..f7fcb451 100644
--- a/shadowsocks-csharp/packages.config
+++ b/shadowsocks-csharp/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Caseless.Fody" version="1.8.3" targetFramework="net462" developmentDependency="true" />
-  <package id="Costura.Fody" version="3.3.2" targetFramework="net462" developmentDependency="true" />
-  <package id="Fody" version="4.0.0" targetFramework="net462" developmentDependency="true" />
-  <package id="GlobalHotKey" version="1.1.0" targetFramework="net462" />
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net462" />
-  <package id="StringEx.CS" version="0.3.1" targetFramework="net462" developmentDependency="true" />
-  <package id="ZXing.Net" version="0.16.4" targetFramework="net462" />
+  <package id="Caseless.Fody" version="1.8.3" targetFramework="net472" />
+  <package id="Costura.Fody" version="3.3.3" targetFramework="net472" />
+  <package id="Fody" version="4.2.1" targetFramework="net472" developmentDependency="true" />
+  <package id="GlobalHotKey" version="1.1.0" targetFramework="net472" />
+  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net472" />
+  <package id="StringEx.CS" version="0.3.1" targetFramework="net472" developmentDependency="true" />
+  <package id="ZXing.Net" version="0.16.5" targetFramework="net472" />
 </packages>
\ No newline at end of file
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index b65f466b..3d1ab13c 100644
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props" Condition="Exists('3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" />
-  <Import Project="3rd\Costura.Fody.3.3.2\build\Costura.Fody.props" Condition="Exists('3rd\Costura.Fody.3.3.2\build\Costura.Fody.props')" />
+  <Import Project="..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props" Condition="Exists('..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props')" />
+  <Import Project="..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props" Condition="Exists('..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -69,19 +69,18 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Caseless, Version=1.8.3.0, Culture=neutral, PublicKeyToken=409b3227471b0f0d, processorArchitecture=MSIL">
-      <HintPath>3rd\Caseless.Fody.1.8.3\lib\net452\Caseless.dll</HintPath>
+      <HintPath>..\packages\Caseless.Fody.1.8.3\lib\net452\Caseless.dll</HintPath>
     </Reference>
-    <Reference Include="Costura, Version=3.3.2.0, Culture=neutral, PublicKeyToken=9919ef960d84173d, processorArchitecture=MSIL">
-      <HintPath>3rd\Costura.Fody.3.3.2\lib\net40\Costura.dll</HintPath>
+    <Reference Include="Costura, Version=3.3.3.0, Culture=neutral, PublicKeyToken=9919ef960d84173d, processorArchitecture=MSIL">
+      <HintPath>..\packages\Costura.Fody.3.3.3\lib\net40\Costura.dll</HintPath>
     </Reference>
     <Reference Include="GlobalHotKey, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>3rd\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
-      <Private>True</Private>
+      <HintPath>..\packages\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="Microsoft.VisualBasic" />
     <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>3rd\Newtonsoft.Json.12.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\packages\Newtonsoft.Json.12.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="System" />
@@ -94,11 +93,11 @@
     <Reference Include="System.Windows.Forms.DataVisualization" />
     <Reference Include="System.XML" />
     <Reference Include="WindowsBase" />
-    <Reference Include="zxing, Version=0.16.4.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>3rd\ZXing.Net.0.16.4\lib\net461\zxing.dll</HintPath>
+    <Reference Include="zxing, Version=0.16.5.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
+      <HintPath>..\packages\ZXing.Net.0.16.5\lib\net47\zxing.dll</HintPath>
     </Reference>
-    <Reference Include="zxing.presentation, Version=0.16.4.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>3rd\ZXing.Net.0.16.4\lib\net461\zxing.presentation.dll</HintPath>
+    <Reference Include="zxing.presentation, Version=0.16.5.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
+      <HintPath>..\packages\ZXing.Net.0.16.5\lib\net47\zxing.presentation.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
@@ -162,8 +161,8 @@
     <Compile Include="Controller\Service\Sip003Plugin.cs" />
     <Compile Include="Proxy\Socks5Proxy.cs" />
     <Compile Include="Settings.cs" />
-    <Compile Include="StringEx.cs" />
     <Compile Include="Controller\System\Hotkeys\Hotkeys.cs" />
+    <Compile Include="StringEx.cs" />
     <Compile Include="Util\ProcessManagement\Job.cs" />
     <Compile Include="Util\ProcessManagement\ThreadUtil.cs" />
     <Compile Include="Util\Sockets\LineReader.cs" />
@@ -291,11 +290,6 @@
       <ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName>
       <Install>false</Install>
     </BootstrapperPackage>
-    <BootstrapperPackage Include="Microsoft.Net.Framework.2.0">
-      <Visible>False</Visible>
-      <ProductName>.NET Framework 2.0 %28x86%29</ProductName>
-      <Install>false</Install>
-    </BootstrapperPackage>
     <BootstrapperPackage Include="Microsoft.Net.Framework.3.0">
       <Visible>False</Visible>
       <ProductName>.NET Framework 3.0 %28x86%29</ProductName>
@@ -318,51 +312,15 @@
     </BootstrapperPackage>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <UsingTask TaskName="CosturaCleanup" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll" TaskFactory="CodeTaskFactory">
-    <ParameterGroup>
-      <Config Output="false" Required="true" ParameterType="Microsoft.Build.Framework.ITaskItem" />
-      <Files Output="false" Required="true" ParameterType="Microsoft.Build.Framework.ITaskItem[]" />
-    </ParameterGroup>
-    <Task Evaluate="true">
-      <Reference xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Include="System.Xml" />
-      <Reference xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Include="System.Xml.Linq" />
-      <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System" />
-      <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System.IO" />
-      <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System.Xml.Linq" />
-      <Code xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Type="Fragment" Language="cs"><![CDATA[
-var config = XElement.Load(Config.ItemSpec).Elements("Costura").FirstOrDefault();
-
-if (config == null) return true;
-
-var excludedAssemblies = new List<string>();
-var attribute = config.Attribute("ExcludeAssemblies");
-if (attribute != null)
-    foreach (var item in attribute.Value.Split('|').Select(x => x.Trim()).Where(x => x != string.Empty))
-        excludedAssemblies.Add(item);
-var element = config.Element("ExcludeAssemblies");
-if (element != null)
-    foreach (var item in element.Value.Split(new[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).Where(x => x != string.Empty))
-        excludedAssemblies.Add(item);
-
-var filesToCleanup = Files.Select(f => f.ItemSpec).Where(f => !excludedAssemblies.Contains(Path.GetFileNameWithoutExtension(f), StringComparer.InvariantCultureIgnoreCase));
-
-foreach (var item in filesToCleanup)
-  File.Delete(item);
-]]></Code>
-    </Task>
-  </UsingTask>
-  <Target Name="CleanReferenceCopyLocalPaths" AfterTargets="AfterBuild;NonWinFodyTarget">
-    <CosturaCleanup Config="FodyWeavers.xml" Files="@(ReferenceCopyLocalPaths->'$(OutDir)%(DestinationSubDirectory)%(Filename)%(Extension)')" />
-  </Target>
+  <Import Project="..\packages\Fody.4.2.1\build\Fody.targets" Condition="Exists('..\packages\Fody.4.2.1\build\Fody.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('3rd\Costura.Fody.3.3.2\build\Costura.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Costura.Fody.3.3.2\build\Costura.Fody.props'))" />
-    <Error Condition="!Exists('3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props'))" />
-    <Error Condition="!Exists('3rd\Fody.4.0.0\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Fody.4.0.0\build\Fody.targets'))" />
+    <Error Condition="!Exists('..\packages\Fody.4.2.1\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Fody.4.2.1\build\Fody.targets'))" />
+    <Error Condition="!Exists('..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props'))" />
+    <Error Condition="!Exists('..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props'))" />
   </Target>
-  <Import Project="3rd\Fody.4.0.0\build\Fody.targets" Condition="Exists('3rd\Fody.4.0.0\build\Fody.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
diff --git a/test/ShadowsocksTest.csproj b/test/ShadowsocksTest.csproj
index d85a006e..c21ab66b 100644
--- a/test/ShadowsocksTest.csproj
+++ b/test/ShadowsocksTest.csproj
@@ -36,7 +36,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="GlobalHotKey, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\shadowsocks-csharp\3rd\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
+      <HintPath>..\packages\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Management" />
diff --git a/test/packages.config b/test/packages.config
index a32f7c2d..b0cd2533 100644
--- a/test/packages.config
+++ b/test/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="GlobalHotKey" version="1.1.0" targetFramework="net462" />
+  <package id="GlobalHotKey" version="1.1.0" targetFramework="net472" />
 </packages>
\ No newline at end of file