diff --git a/.gitignore b/.gitignore
index 3883f0948..da418d0c3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,6 +43,5 @@ SubtitleEditBeta
 /src/ui/packages
 /src/ui/ILRepack*
 /src/ui/NHunspell*
-/build_beta.bat
 /TestResults
 /packages
diff --git a/build.bat b/build.bat
index b39f2e558..2bfa42a09 100644
--- a/build.bat
+++ b/build.bat
@@ -99,14 +99,11 @@ IF %ERRORLEVEL% NEQ 0 GOTO EndWithError
 
 IF /I "%BUILDTYPE%" == "Clean" GOTO EndSuccessful
 
-dir
 PUSHD "src/ui"
-dir
 ECHO.
 ECHO Merging assemblies with ILRepack...
-FOR /D %%A IN (packages\ILRepack.*) DO (SET "ILREPACKDIR=%%A")
+FOR /D %%A IN (..\..\packages\ILRepack.*) DO (SET "ILREPACKDIR=%%A")
 ECHO.
-dir
 echo ILREPACKDIR
 echo %ILREPACKDIR%
 echo ILREPACKDIR done
diff --git a/build_beta.bat b/build_beta.bat
new file mode 100644
index 000000000..d530bb3c0
--- /dev/null
+++ b/build_beta.bat
@@ -0,0 +1,204 @@
+@ECHO OFF
+SETLOCAL
+
+CD /D %~dp0
+
+REM Check for the help switches
+IF /I "%~1" == "help"   GOTO ShowHelp
+IF /I "%~1" == "/help"  GOTO ShowHelp
+IF /I "%~1" == "-help"  GOTO ShowHelp
+IF /I "%~1" == "--help" GOTO ShowHelp
+IF /I "%~1" == "/?"     GOTO ShowHelp
+IF /I "%~1" == "-?"     GOTO ShowHelp
+
+ECHO Getting latest changes...
+git pull
+ECHO.
+
+ECHO Starting compilation...
+
+MD SubtitleEditBeta
+DEL SubtitleEditBeta\SubtitleEditBeta.zip
+
+REM Set environment variables for Visual Studio command line if necessary
+:SetVsCmdLineEnv
+IF DEFINED VSINSTALLDIR IF EXIST "%VSINSTALLDIR%" (
+  IF DEFINED VisualStudioVersion IF "%VisualStudioVersion%" GEQ "15.0" GOTO SetBuildType
+  ECHO.
+  ECHO Developer Command Prompt for Visual Studio 2017 or later required!
+  GOTO EndWithError
+)
+FOR /F "usebackq delims=" %%A IN (`vswhere -latest -requires Microsoft.Component.MSBuild -property installationPath`) DO (
+  SET "VSINSTALLDIR=%%A\"
+)
+IF DEFINED VSINSTALLDIR IF EXIST "%VSINSTALLDIR%" (
+  ECHO Visual Studio installation path: "%VSINSTALLDIR%"
+) ELSE (
+  ECHO.
+  ECHO Cannot find Visual Studio.
+  GOTO EndWithError
+)
+SET "VsDevCmd_bat=%VSINSTALLDIR%Common7\Tools\VsDevCmd.bat"
+IF NOT EXIST "%VsDevCmd_bat%" (
+  FOR /F "usebackq delims=" %%A IN (`DIR /B /S "%VSINSTALLDIR%\VsDevCmd.bat"`) DO (
+    SET "VsDevCmd_bat=%%A"
+  )
+)
+IF EXIST "%VsDevCmd_bat%" (
+  ECHO Visual Studio VsDevCmd.bat path: "%VsDevCmd_bat%"
+) ELSE (
+  ECHO.
+  ECHO Cannot find Visual Studio VsDevCmd batch file.
+  GOTO EndWithError
+)
+ECHO.
+CALL "%VsDevCmd_bat%" -startdir=none
+GOTO SetVsCmdLineEnv
+
+
+:SetBuildType
+IF "%~1" == "" (
+  SET "BUILDTYPE=Build"
+) ELSE (
+  IF /I "%~1" == "Build"     SET "BUILDTYPE=Build"   & GOTO START
+  IF /I "%~1" == "/Build"    SET "BUILDTYPE=Build"   & GOTO START
+  IF /I "%~1" == "-Build"    SET "BUILDTYPE=Build"   & GOTO START
+  IF /I "%~1" == "--Build"   SET "BUILDTYPE=Build"   & GOTO START
+  IF /I "%~1" == "Clean"     SET "BUILDTYPE=Clean"   & GOTO START
+  IF /I "%~1" == "/Clean"    SET "BUILDTYPE=Clean"   & GOTO START
+  IF /I "%~1" == "-Clean"    SET "BUILDTYPE=Clean"   & GOTO START
+  IF /I "%~1" == "--Clean"   SET "BUILDTYPE=Clean"   & GOTO START
+  IF /I "%~1" == "Rebuild"   SET "BUILDTYPE=Rebuild" & GOTO START
+  IF /I "%~1" == "/Rebuild"  SET "BUILDTYPE=Rebuild" & GOTO START
+  IF /I "%~1" == "-Rebuild"  SET "BUILDTYPE=Rebuild" & GOTO START
+  IF /I "%~1" == "--Rebuild" SET "BUILDTYPE=Rebuild" & GOTO START
+
+  ECHO.
+  ECHO Unsupported commandline switch!
+  GOTO EndWithError
+)
+
+
+:START
+TITLE %BUILDTYPE%ing Subtitle Edit - Release^|Any CPU...
+ECHO.
+ECHO %BUILDTYPE%ing Subtitle Edit - Release^|Any CPU...
+DEL /F /Q SubtitleEdit-*-Setup.exe SubtitleEdit-*.zip 2>NUL
+ECHO.
+ECHO Visual Studio installation path: "%VSINSTALLDIR%"
+IF EXIST "%VSINSTALLDIR%MSBuild\15.0\Bin\MSBuild.exe" (
+  SET "MSBUILD=%VSINSTALLDIR%MSBuild\15.0\Bin\MSBuild.exe"
+) ELSE (
+IF EXIST "%VSINSTALLDIR%MSBuild\Current\Bin\MSBuild.exe" (
+  SET "MSBUILD=%VSINSTALLDIR%MSBuild\Current\Bin\MSBuild.exe"
+) ELSE (
+  ECHO Cannot find Visual Studio 2019.
+  GOTO EndWithError
+))
+
+"%MSBUILD%" SubtitleEdit.sln /r /t:%BUILDTYPE% /p:Configuration=Release /p:Platform="Any CPU"^
+ /maxcpucount /consoleloggerparameters:DisableMPLogging;Summary;Verbosity=minimal
+IF %ERRORLEVEL% NEQ 0 GOTO EndWithError
+
+IF /I "%BUILDTYPE%" == "Clean" GOTO EndSuccessful
+
+PUSHD "src/ui"
+ECHO.
+ECHO Merging assemblies with ILRepack...
+FOR /D %%A IN (..\..\packages\ILRepack.*) DO (SET "ILREPACKDIR=%%A")
+ECHO.
+echo ILREPACKDIR
+echo %ILREPACKDIR%
+echo ILREPACKDIR done
+"%ILREPACKDIR%\tools\ILRepack.exe" /parallel /internalize /targetplatform:v4 /out:"bin\Release\SubtitleEdit.exe" "bin\Release\SubtitleEdit.exe"^
+ "bin\Release\libse.dll" "bin\Release\zlib.net.dll" "bin\Release\NHunspell.dll" "bin\Release\UtfUnknown.dll" "DLLs\Interop.QuartzTypeLib.dll"^
+ "bin\Release\Newtonsoft.Json.dll" "bin\Release\System.Net.Http.Extensions.dll" "bin\Release\System.Net.Http.Primitives.dll"
+IF %ERRORLEVEL% NEQ 0 GOTO EndWithError
+POPD
+
+CALL :SubDetectSevenzipPath
+IF DEFINED SEVENZIP IF EXIST "%SEVENZIP%" (
+  CALL :SubZipFile
+)
+
+:EndSuccessful
+TITLE %BUILDTYPE%ing Subtitle Edit finished!
+GOTO END
+
+
+:EndWithError
+TITLE Compiling Subtitle Edit [ERROR]
+ECHO.
+ECHO.
+ECHO  ** ERROR: Build failed and aborted! **
+GOTO END
+
+
+:ShowHelp
+TITLE %~nx0 %1
+ECHO.
+ECHO.
+ECHO Usage:   %~nx0 [Clean^|Build^|Rebuild]
+ECHO.
+ECHO Notes:   You can also prefix the commands with "-", "--" or "/".
+ECHO          The arguments are not case sensitive.
+ECHO.
+ECHO Executing %~nx0 without any arguments is equivalent to "%~nx0 build".
+
+
+:END
+ECHO.
+ECHO.
+ENDLOCAL
+PAUSE
+EXIT /B
+
+
+:SubZipFile
+TITLE Creating ZIP archive with 7-Zip...
+ECHO.
+ECHO Creating ZIP archive with 7-Zip...
+PUSHD "src\ui\bin\Release"
+IF EXIST "temp_zip"                  RD /S /Q "temp_zip"
+IF NOT EXIST "temp_zip"              MD "temp_zip"
+IF NOT EXIST "temp_zip\Languages"    MD "temp_zip\Languages"
+IF NOT EXIST "temp_zip\Dictionaries" MD "temp_zip\Dictionaries"
+IF NOT EXIST "temp_zip\Ocr"          MD "temp_zip\Ocr"
+IF NOT EXIST "temp_zip\Tesseract302"          MD "temp_zip\Tesseract302"
+
+ECHO.
+COPY /Y /V "..\..\..\..\LICENSE.txt"      "temp_zip\"
+COPY /Y /V "..\..\..\..\Changelog.txt"    "temp_zip\"
+COPY /Y /V "Hunspellx86.dll"           "temp_zip\"
+COPY /Y /V "Hunspellx64.dll"           "temp_zip\"
+COPY /Y /V "SubtitleEdit.exe"          "temp_zip\"
+COPY /Y /V "Languages\*.xml"           "temp_zip\Languages\"
+COPY /Y /V "..\..\..\..\Dictionaries\*.*" "temp_zip\Dictionaries\"
+COPY /Y /V "..\..\..\..\Ocr\*.*"          "temp_zip\Ocr\"
+XCOPY /Y /V "..\..\..\..\Tesseract302\*.*"      "temp_zip\Tesseract302\" /S
+
+PUSHD "temp_zip"
+START "" /B /WAIT "%SEVENZIP%" a -tzip -mx=9 "SubtitleEditBeta.zip" * >NUL
+IF %ERRORLEVEL% NEQ 0 GOTO EndWithError
+
+ECHO.
+ECHO ZIP archive created successfully!
+MOVE /Y "SubtitleEditBeta.zip" "..\..\..\..\..\SubtitleEditBeta" >NUL
+POPD
+IF EXIST "temp_zip" RD /S /Q "temp_zip"
+POPD
+
+EXIT /B
+
+
+:SubDetectSevenzipPath
+FOR %%G IN (7z.exe) DO (SET "SEVENZIP_PATH=%%~$PATH:G")
+IF EXIST "%SEVENZIP_PATH%" (SET "SEVENZIP=%SEVENZIP_PATH%" & EXIT /B)
+
+FOR %%G IN (7za.exe) DO (SET "SEVENZIP_PATH=%%~$PATH:G")
+IF EXIST "%SEVENZIP_PATH%" (SET "SEVENZIP=%SEVENZIP_PATH%" & EXIT /B)
+
+FOR /F "tokens=2*" %%A IN (
+  'REG QUERY "HKLM\SOFTWARE\7-Zip" /v "Path" 2^>NUL ^|^|
+   REG QUERY "HKLM\SOFTWARE\Wow6432Node\7-Zip" /v "Path" 2^>NUL') DO IF "%%A" == "REG_SZ" SET "SEVENZIP=%%B\7z.exe"
+EXIT /B
\ No newline at end of file
diff --git a/src/ui/SubtitleEdit.csproj b/src/ui/SubtitleEdit.csproj
index fa7d77411..fab1631fc 100644
--- a/src/ui/SubtitleEdit.csproj
+++ b/src/ui/SubtitleEdit.csproj
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="packages\ILRepack.2.0.18\build\ILRepack.props" Condition="Exists('packages\ILRepack.2.0.18\build\ILRepack.props')" />
+  <Import Project="..\..\packages\ILRepack.2.0.18\build\ILRepack.props" Condition="Exists('..\..packages\ILRepack.2.0.18\build\ILRepack.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <AppDesignerFolder>Properties</AppDesignerFolder>
@@ -58,11 +58,11 @@
       <SpecificVersion>False</SpecificVersion>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=8.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Newtonsoft.Json.8.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>$(SolutionDir)\packages\Newtonsoft.Json.8.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="NHunspell, Version=1.2.5554.16953, Culture=neutral, PublicKeyToken=1ac793ea843b4366, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>packages\NHunspell.1.2.5554.16953\lib\net\NHunspell.dll</HintPath>
+      <HintPath>$(SolutionDir)\NHunspell.1.2.5554.16953\lib\net\NHunspell.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
@@ -70,10 +70,10 @@
     <Reference Include="System.EnterpriseServices" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Net.Http.Extensions, Version=2.2.29.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Microsoft.Net.Http.2.2.29\lib\net45\System.Net.Http.Extensions.dll</HintPath>
+      <HintPath>$(SolutionDir)\packages\Microsoft.Net.Http.2.2.29\lib\net45\System.Net.Http.Extensions.dll</HintPath>
     </Reference>
     <Reference Include="System.Net.Http.Primitives, Version=4.2.29.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Microsoft.Net.Http.2.2.29\lib\net45\System.Net.Http.Primitives.dll</HintPath>
+      <HintPath>$(SolutionDir)\packages\Microsoft.Net.Http.2.2.29\lib\net45\System.Net.Http.Primitives.dll</HintPath>
     </Reference>
     <Reference Include="System.Net.Http.WebRequest" />
     <Reference Include="System.Web.Services" />
@@ -1918,7 +1918,7 @@
       <Output TaskParameter="Result" PropertyName="HunspellVersion" />
     </XmlPeek>
     <PropertyGroup>
-      <HunspellDir>$(SolutionDir)\src\ui\packages\NHunspell.$(HunspellVersion)\content\</HunspellDir>
+      <HunspellDir>$(SolutionDir)\packages\NHunspell.$(HunspellVersion)\content\</HunspellDir>
     </PropertyGroup>
     <Copy SourceFiles="@(HunspellAssemblies -> '$(HunspellDir)%(Identity)')" DestinationFolder="$(OutputPath)" SkipUnchangedFiles="True" />
     <Exec Command="%22$(SolutionDir)\build_helpers.bat%22 rev %22$(ConfigurationName)%22" />
@@ -1926,10 +1926,10 @@
   <Target Name="BeforeClean">
     <Delete Files="@(HunspellAssemblies -> '$(OutputPath)%(Identity)')" />
   </Target>
-  <Import Project="..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" />
+  <Import Project="$(SolutionDir)\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets" Condition="Exists('$(SolutionDir)\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" />
   <Target Name="EnsureBclBuildImported" BeforeTargets="BeforeBuild" Condition="'$(BclBuildImported)' == ''">
-    <Error Condition="!Exists('..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
-    <Error Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
+    <Error Condition="!Exists('$(SolutionDir)\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
+    <Error Condition="Exists('$(SolutionDir)\packages\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
   </Target>
   <!-- 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.
diff --git a/src/ui/packages/ILRepack.2.0.18/.signature.p7s b/src/ui/packages/ILRepack.2.0.18/.signature.p7s
deleted file mode 100644
index 08c3672ca..000000000
Binary files a/src/ui/packages/ILRepack.2.0.18/.signature.p7s and /dev/null differ
diff --git a/src/ui/packages/ILRepack.2.0.18/ILRepack.2.0.18.nupkg b/src/ui/packages/ILRepack.2.0.18/ILRepack.2.0.18.nupkg
deleted file mode 100644
index dfaa07d6f..000000000
Binary files a/src/ui/packages/ILRepack.2.0.18/ILRepack.2.0.18.nupkg and /dev/null differ
diff --git a/src/ui/packages/ILRepack.2.0.18/build/ILRepack.props b/src/ui/packages/ILRepack.2.0.18/build/ILRepack.props
deleted file mode 100644
index 03ff50bf6..000000000
--- a/src/ui/packages/ILRepack.2.0.18/build/ILRepack.props
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <ILRepack>$(MSBuildThisFileDirectory)..\tools\ILRepack.exe</ILRepack>
-  </PropertyGroup>
-</Project>
\ No newline at end of file
diff --git a/src/ui/packages/ILRepack.2.0.18/tools/ILRepack.exe b/src/ui/packages/ILRepack.2.0.18/tools/ILRepack.exe
deleted file mode 100644
index 155b8026f..000000000
Binary files a/src/ui/packages/ILRepack.2.0.18/tools/ILRepack.exe and /dev/null differ
diff --git a/src/ui/packages/NHunspell.1.2.5554.16953/.signature.p7s b/src/ui/packages/NHunspell.1.2.5554.16953/.signature.p7s
deleted file mode 100644
index 3dceacb0d..000000000
Binary files a/src/ui/packages/NHunspell.1.2.5554.16953/.signature.p7s and /dev/null differ
diff --git a/src/ui/packages/NHunspell.1.2.5554.16953/NHunspell.1.2.5554.16953.nupkg b/src/ui/packages/NHunspell.1.2.5554.16953/NHunspell.1.2.5554.16953.nupkg
deleted file mode 100644
index bbc41cf92..000000000
Binary files a/src/ui/packages/NHunspell.1.2.5554.16953/NHunspell.1.2.5554.16953.nupkg and /dev/null differ
diff --git a/src/ui/packages/NHunspell.1.2.5554.16953/Tools/install.ps1 b/src/ui/packages/NHunspell.1.2.5554.16953/Tools/install.ps1
deleted file mode 100644
index bfd13c31e..000000000
--- a/src/ui/packages/NHunspell.1.2.5554.16953/Tools/install.ps1
+++ /dev/null
@@ -1,13 +0,0 @@
-param($installPath, $toolsPath, $package, $project)
-
-# Hunspellx86.dll (32 Bit Windows)
-$hunspellx86Dll = $project.ProjectItems.Item("Hunspellx86.dll")
-$hunspellx86Dll.Properties.Item("BuildAction").Value = 0 # BuildAction = None
-$hunspellx86Dll.Properties.Item("CopyToOutputDirectory").Value = 2 # CopyToOutputDirectory = Copy if newer
-
-
-# Hunspellx64.dll (64 Bit Windows)
-$hunspellx64Dll = $project.ProjectItems.Item("Hunspellx64.dll")
-$hunspellx64Dll.Properties.Item("BuildAction").Value = 0 # BuildAction = None
-$hunspellx64Dll.Properties.Item("CopyToOutputDirectory").Value = 2 # CopyToOutputDirectory = Copy if newer
-
diff --git a/src/ui/packages/NHunspell.1.2.5554.16953/content/Hunspellx64.dll b/src/ui/packages/NHunspell.1.2.5554.16953/content/Hunspellx64.dll
deleted file mode 100644
index 55a29ec84..000000000
Binary files a/src/ui/packages/NHunspell.1.2.5554.16953/content/Hunspellx64.dll and /dev/null differ
diff --git a/src/ui/packages/NHunspell.1.2.5554.16953/content/Hunspellx86.dll b/src/ui/packages/NHunspell.1.2.5554.16953/content/Hunspellx86.dll
deleted file mode 100644
index 7bc6cf222..000000000
Binary files a/src/ui/packages/NHunspell.1.2.5554.16953/content/Hunspellx86.dll and /dev/null differ
diff --git a/src/ui/packages/NHunspell.1.2.5554.16953/lib/net/NHunspell.dll b/src/ui/packages/NHunspell.1.2.5554.16953/lib/net/NHunspell.dll
deleted file mode 100644
index 3984517d4..000000000
Binary files a/src/ui/packages/NHunspell.1.2.5554.16953/lib/net/NHunspell.dll and /dev/null differ
diff --git a/src/ui/packages/NHunspell.1.2.5554.16953/lib/net/NHunspell.pdb b/src/ui/packages/NHunspell.1.2.5554.16953/lib/net/NHunspell.pdb
deleted file mode 100644
index bb758683f..000000000
Binary files a/src/ui/packages/NHunspell.1.2.5554.16953/lib/net/NHunspell.pdb and /dev/null differ