diff --git a/Tools/msi/generate_md5.py b/Tools/msi/generate_md5.py
new file mode 100644
index 00000000000..9e4c14731bd
--- /dev/null
+++ b/Tools/msi/generate_md5.py
@@ -0,0 +1,27 @@
+import hashlib
+import os
+import sys
+
+def main():
+    filenames, hashes, sizes = [], [], []
+
+    for file in sys.argv[1:]:
+        if not os.path.isfile(file):
+            continue
+
+        with open(file, 'rb') as f:
+            data = f.read()
+            md5 = hashlib.md5()
+            md5.update(data)
+            filenames.append(os.path.split(file)[1])
+            hashes.append(md5.hexdigest())
+            sizes.append(str(len(data)))
+
+    print('{:40s}  {:<32s}  {:<9s}'.format('File', 'MD5', 'Size'))
+    for f, h, s in zip(filenames, hashes, sizes):
+        print('{:40s}  {:>32s}  {:>9s}'.format(f, h, s))
+
+
+
+if __name__ == "__main__":
+    sys.exit(int(main() or 0))
diff --git a/Tools/msi/uploadrelease.bat b/Tools/msi/uploadrelease.bat
index c91d229475e..37091964cca 100644
--- a/Tools/msi/uploadrelease.bat
+++ b/Tools/msi/uploadrelease.bat
@@ -20,19 +20,28 @@ if "%1" EQU "--target" (set TARGET=%~2) && shift && shift && goto CheckOpts
 if "%1" EQU "--dry-run" (set DRYRUN=true) && shift && goto CheckOpts
 
 if not defined PLINK where plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
+if not defined PLINK where /R "%ProgramFiles(x86)%\PuTTY" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
 if not defined PLINK where /R "%ProgramFiles(x86)%" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
 if not defined PLINK echo Cannot locate plink.exe & exit /B 1
 echo Found plink.exe at %PLINK%
 
 if not defined PSCP where pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
+if not defined PSCP where /R "%ProgramFiles(x86)%\PuTTY" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
 if not defined PSCP where /R "%ProgramFiles(x86)%" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
 if not defined PSCP echo Cannot locate pscp.exe & exit /B 1
 echo Found pscp.exe at %PSCP%
 
+if not defined GPG where gpg2 > "%TEMP%\gpg.loc" 2> nul && set /P GPG= < "%TEMP%\gpg.loc" & del "%TEMP%\gpg.loc"
+if not defined GPG where /R "%PCBUILD%..\externals" gpg2 > "%TEMP%\gpg.loc" 2> nul && set /P GPG= < "%TEMP%\gpg.loc" & del "%TEMP%\gpg.loc"
+if not defined GPG echo Cannot locate gpg2.exe. Signatures will not be uploaded & pause
+echo Found gpg2.exe at %GPG%
+
 call "%PCBUILD%env.bat" > nul 2> nul
 pushd "%D%"
 msbuild /v:m /nologo uploadrelease.proj /t:Upload /p:Platform=x86
 msbuild /v:m /nologo uploadrelease.proj /t:Upload /p:Platform=x64 /p:IncludeDoc=false
+msbuild /v:m /nologo uploadrelease.proj /t:ShowHashes /p:Platform=x86
+msbuild /v:m /nologo uploadrelease.proj /t:ShowHashes /p:Platform=x64 /p:IncludeDoc=false
 popd
 exit /B 0
 
diff --git a/Tools/msi/uploadrelease.proj b/Tools/msi/uploadrelease.proj
index 56aff4ace5a..dea37566716 100644
--- a/Tools/msi/uploadrelease.proj
+++ b/Tools/msi/uploadrelease.proj
@@ -38,6 +38,17 @@
         <Error Text="No path for PLINK provided" Condition="'$(PLINK)' == ''" />
     </Target>
     
+    <Target Name="_RunGpg" Condition="'$(GPG)' != ''" Inputs="@(File)" Outputs="$(IntermediateOutputPath)\gpg\%(FileName)%(Extension).asc">
+        <MakeDir Directories="$(IntermediateOutputPath)gpg" />
+        <Delete Files="$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc" Condition="Exists('$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc')" />
+        <Exec Command="&quot;$(GPG)&quot; -ba -o &quot;$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc&quot; &quot;%(File.FullPath)&quot;" />
+        <ItemGroup>
+            <File Include="$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc">
+                <CopyTo>%(File.CopyTo)</CopyTo>
+            </File>
+        </ItemGroup>
+    </Target>
+    
     <Target Name="_Upload" Condition="!$(DryRun)">
         <Exec Command="&quot;$(PLINK)&quot; $(User)@$(Host) mkdir %(File.CopyTo) ^&amp;^&amp; chgrp downloads %(File.CopyTo) ^&amp;^&amp; chmod g-w,o+rx %(File.CopyTo)
 &quot;$(PSCP)&quot; @(File,' ') $(User)@$(Host):%(File.CopyTo)
@@ -53,7 +64,15 @@ echo.
 echo." />
     </Target>
     
-    <Target Name="Upload" DependsOnTargets="_ValidateProperties;_PrintNames;_Upload" />
+    <Target Name="Upload" DependsOnTargets="_ValidateProperties;_RunGpg;_PrintNames;_Upload" />
+    
+    <Target Name="ShowHashes">
+        <ItemGroup>
+            <UserFiles Include="@(File)" Condition="'%(File.CopyTo)' == '$(EXETarget)'" />
+        </ItemGroup>
+        
+        <Exec Command="&quot;$(PythonExe)&quot; generate_md5.py @(UserFiles->'&quot;%(FullPath)&quot;',' ')" />
+    </Target>
     
     <Target Name="Build">
         <Error Text="This script should be invoked using uploadrelease.bat." />