In my previous post I talked about how VS external tools , the exes can be called from Visual Studio itself.If I had not figured out this,I seriouly had some plans to write an application which can group all these exes together :).
If you do not know how an external exe can be called from .Net Application,its simple;use the Process class found in the System.Diagnostics namespace.
Process proc = new Process(); proc.StartInfo.FileName = @"Notepad.exe"; proc.Start();
Read more about this here http://msdn.microsoft.com/en-us/library/92699yzt(v=VS.100).aspx
Hope this information helps you sometime!