Hi Allan,
Go to the Austin FoxPro User Group website at
http://www.afug.net/examples.htm where you will find a download of a digital signature demo program I wrote a while back. It uses VFP (Ver 7) and the Microsoft CAPICOM COM object for cryptography. CAPICOM is available from MS as a download and is redistributable. Regards.
Bob Tracy
Never engage in a battle of wits if you're only half armed.