Skystar x64 Windows 7

I'd like to use and possibly buy ProgDVB to view TV on my PC. But I cannot make it work on my Win 7 x64 Enterprise client. I've read that the problem is in x64 version. In installation files there's only 32-bit version of this dll.

Has anyone managed to find 64-bit version of this dll?

Theoretically 32-bit version of ProgDVB should work with 32-bit version of dll. but I haven't tested it yet. What disadvantages are in 32-bit ProgDVB in comparison with 64-bit ProgDVB?