It’s Super Simple and absolutely free.
If you like OSX, but have a Windows application you desperatly need and you don’t have Citrix anywhere near, this is the program for you.

It could not be…
WineBottler (beta) is the name of the program that lets you run Windows applications in MacOS. The only requirement for using WineBottler is that you manage to pull the Windows program (. Exe file) to the program.
Windows program to run then from a fake c: drive in MacOS X. It is also possible to make a bundle so you can share your Windows program with other MacOS users.

Click here to Download WineBottler

Note: only compatible with Mac OS X.