I've read a few threads about this, but it never became very clear to me.

I'm searching for a way to safely encrypt and decrypt strings. I know of the _CryptApi.vcx, but I understand that there might be problems with OS specific settings on how the strings are encrypted and decryted.

1. The encryption must work exactly the same on all OSs from W98 and up.
2. The encryption must be provided either with pure VFP code or general Windows API. Because of security issues, we don't want to use custom dlls.

Can anyone shed a light on this. With an example maybe ??

Walter,