>Does anyone know the difference between VFP 5.0 and 5.0a?? And where can I purchase the VFP 5.0a
A lot of bug are fixed in 5.0a, the integration with Visual Studio and improvements of speed with Visual SourceSafe.
You can purchase it at the address -->
http://www.microsoft.com/vfoxpro/ They give all the information to how to purchase Visual FoxPro 5.0a