>>>>If all this function does is encrypt a password there are lots of examples written in c# out there ( Google is your friend )
>>>
>>>I did but so for I could not find a simple enough c# encrypt function that can be "duplicated" in VFP. You see I need a function that would do the same from VFP and c# end.
>>>Thank you.
>>
>>Presumably you mean that the C# version should be usable with strings already encoded using the VFP cipher library that you mentioned?
>>
>>Al's pointer to Rick's paper is still valid - you could create a small VFP com interop which could be accessed from .net.
>>
>>But which functions of that library do you actually use ? - the core encryption is fairly straightforward.
>>I took a look at the original C code and it would seem that a C# version should be simple enough to implement......
>
>The function cipher() I am using in VFP code is written in VFP; not in C. Maybe Sergey also wrote it in C but the one he recommended to me years ago was the VFP function. To be honest, I don't even understand all VFP functions he used in creating the cipher(). So converting/rewriting it to C# would be a great challenge.

The VFP code was based on a C conversion and there's a link to the C source - you might find that easier to convert to C# (or not :-} )