Wine let's you run windows applications inside your *nix session.
The Wine development release 1.5.4 is now available.
What's new in this release:
* A new DirectSound resampler.
* A Negotiate authentication provider.
* OpenGL support in the DIB engine.
* Beginnings of support for .NET mixed assemblies.
* Support routines for Internationalized Domain Names.
* Various bug fixes.