Here you can download a program written in Csharp and .NET 2.0 that can calculate graphs on the page "about self centering. I didn't provide an installation file, instead it is just a zip file, which you need to unpack. The program is at bin\Debug\pythoncalc.exe.
If you run the program and you get an error, you may need to install the .NET 2.0 runtime. You can get it from Microsoft .NET Framework Version 2.0 Redistributable Package (x86). NOTE: I do not happen to have a computer without .NET 2.0, so if somebody could mail me the error message I can include it here.
The database contains some of the projects on the website of Jürgen. But you can always add more:
On a german Windows XP: "Anwendung konnte nicht initialisiert werden"