Hi Sergey

The problem is between WinXP and all the other version of Windows because MS instituted a new version of the Cryptographic provider in WinXP. It is supposed to work if you use the base cryptographic provider. However, I have experienced problems even using the base provider.

Simon

>>Ben,
>>
>>In addition to Sergey's response, VFP 7.0 came with an encryption class in the FFC. It's demonstrated in the Samples. The class library is _crypt.vcx. It uses the native Windows encrytion API and supports levels up to 128 bit encryption.
>
>George,
>
>IIRC, it produce incompatible results between different versions of Windows. Or I'm mistaken?