Depending on the size of your table and level of security required, you may find this simple encryption method on MSDN useful:
Bit Manipulation in FoxPro for Data Encryption>Dear Friends,
>Working with VFP5.
>I wish to encrypt a database/table in runtime and decrypt it in runtime any idea or available program on universalthread.
>
>Thanks
kenweber
GCom2 Solutions
Microsoft Certified Professional