You might be able to run the programs via a DOS emulator, but they won't run natively on a Pocket PC otherwise... If you have the source code, you could likely get a copy of any of the .NET Visual Studios and build a PPC version of the code... (You would have to rebuild the GUI for each app tho...) Unless you like a challenge, I wouldn't bother...
I'm pretty sure most if not all if the programs you mentioned have freeware versions designed for the PPC if you just do a search like "WM5 Black Jack Freeware" in Google...
(I found this as an example:
http://www.freewarepocketpc.net/ppc-...jack-beta.html )