I decided to release the source code of my Visual Studio add-in VsTortoise
on vstortoise.codeplex.com, where all VsTortoise related files can be found right now, such as the C# source code but also the inno-setup installer script.
VsTortoise is an add-in for Microsoft Visual Studio, that provides an interface to perform the most common revision control operations directly from inside the IDE. It uses TortoiseSVN to execute the Subversion commands.