diff --git a/appveyor.yml b/appveyor.yml
index 58f41fb1..3086bd28 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -103,7 +103,7 @@ before_build:
 # scripts to run after build (working directory and environment changes are persisted from the previous steps)
 after_build:
 - ps: |+
-    function CalculateHash($file)
+    function Calculate-Hash($file)
     {
         $newLine = "`r`n"
         $text = (Split-Path $file -Leaf) + $newLine
@@ -119,35 +119,37 @@ after_build:
     }
 
     $WorkingFolder = "$env:APPVEYOR_BUILD_FOLDER\working"
-    $ExeFileName = "Shadowsocks-$env:APPVEYOR_BUILD_VERSION-$env:CONFIGURATION.exe"
-    $DllFileName = "Shadowsocks.dll"
-    $ExeFile = "$WorkingFolder\$DNVer\$ExeFileName"
-    $DllFile = "$WorkingFolder\$DNVer\$DllFileName"
-
     New-Item $WorkingFolder -ItemType Directory -Force
-    Copy-Item $env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\$env:CONFIGURATION\netcoreapp3.1\Shadowsocks.exe $WorkingFolder\Shadowsocks.exe
-    Copy-Item $env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\$env:CONFIGURATION\netcoreapp3.1\Shadowsocks.dll $WorkingFolder\Shadowsocks.dll
-    Copy-Item $env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\$env:CONFIGURATION\netcoreapp3.1\Shadowsocks.runtimeconfig.json $WorkingFolder\Shadowsocks.runtimeconfig.json
-    
-    Copy-Item $WorkingFolder\Shadowsocks.exe $ExeFile
-    # Copy-Item $WorkingFolder\Shadowsocks.dll $DllFile
-    
+
     # Create and deploy the release zip
-    $ReleaseFile = "$WorkingFolder\Shadowsocks.exe"
-    $ReleaseFile2 = "$WorkingFolder\Shadowsocks.dll"
-    $ReleaseFile3 = "$WorkingFolder\Shadowsocks.runtimeconfig.json"
-    $ZipFile = "$WorkingFolder\Shadowsocks-$env:APPVEYOR_BUILD_VERSION.zip"
+    $ReleaseFile = "$env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\$env:CONFIGURATION\netcoreapp3.1\Shadowsocks.exe"
+    $ReleaseFile2 = "$env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\$env:CONFIGURATION\netcoreapp3.1\Shadowsocks.dll"
+    $ReleaseFile3 = "$env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\$env:CONFIGURATION\netcoreapp3.1\Shadowsocks.runtimeconfig.json"
+    $ZipFile = "$WorkingFolder\Shadowsocks-$env:APPVEYOR_BUILD_VERSION-minimal.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 $ReleaseFile2
     7z a $ZipFile $ReleaseFile3
     Push-AppveyorArtifact $ZipFile
-    # Calculate zip Hash
-    CalculateHash -file $ZipFile | Out-File -FilePath $ZipHashFile
+    Calculate-Hash -file $ZipFile | Out-File -FilePath $ZipHashFile -Append
+
+    # Package into a self-contained single-file executable
+    dotnet publish -f netcoreapp3.1 -r win-x64 -c $env:CONFIGURATION -p:PublishSingleFile=true -p:PublishTrimmed=true $env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\shadowsocks-csharp.csproj
+    dotnet publish -f netcoreapp3.1 -r win-x86 -c $env:CONFIGURATION -p:PublishSingleFile=true -p:PublishTrimmed=true $env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\shadowsocks-csharp.csproj
+    $SingleExeX64 = "$env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\Any CPU\$env:CONFIGURATION\netcoreapp3.1\win-x64\publish\Shadowsocks.exe"
+    $SingleExeX86 = "$env:APPVEYOR_BUILD_FOLDER\shadowsocks-csharp\bin\Any CPU\$env:CONFIGURATION\netcoreapp3.1\win-x86\publish\Shadowsocks.exe"
+    $ZipSingleExeX64 = "$WorkingFolder\Shadowsocks-$env:APPVEYOR_BUILD_VERSION-portable-x64.zip"
+    $ZipSingleExeX86 = "$WorkingFolder\Shadowsocks-$env:APPVEYOR_BUILD_VERSION-portable-x86.zip"
+    $HashZipX64 = "$ZipSingleExeX64.hash"
+    $HashZipX86 = "$ZipSingleExeX86.hash"
+    7z a $ZipSingleExeX64 $SingleExeX64
+    7z a $ZipSingleExeX86 $SingleExeX86
+    Calculate-Hash -file $ZipSingleExeX64 | Out-File -FilePath $ZipHashFile -Append
+    Calculate-Hash -file $ZipSingleExeX86 | Out-File -FilePath $ZipHashFile -Append
+    Push-AppveyorArtifact $ZipSingleExeX64
+    Push-AppveyorArtifact $ZipSingleExeX86
+
     Push-AppveyorArtifact $ZipHashFile
-    
 
 # scripts to run *after* solution is built and *before* automatic packaging occurs (web apps, NuGet packages, Azure Cloud Services)
 # before_package: