Guaranteed Transparency!

One of my applications highly depends on transparency, but the .NET way of making forms and controls transparent seems not be guaranteed. I have run into situations when transparency just does not work.
To name two:
1. Some nVidia cards and some drivers of them.
2. Starting video programs such as Media Player.

Do you think there will be a better way arround to make forms and controls transparent? Or should I warn the users of known and maybe unknown situations that the program will not work?

You can try APIs . They are more powerful than GDI+ used in .NET .:o

Dont like the APIs, however what API should i use?

Try this module :

Thanks Pirate, but the module needs lots of modifications, am too lazy to do them now.