>>I'm absolutely astounded that VFP isn't blowing up, but I agree with you on this. In fact, I'd rather it did blow up than work. It'd tell me right away that I was doing something wrong with the call. If you're scenario came to pass, I'd probably be cursing some innocent device driver or something.:-)
>
>I'm sure you fellows have a valid point here, since one of my major weak points is API, but just for the record, I've been using that code for years, with probably over 10,000 logins, on different OS, and all types of machines, without any trouble...a pretty solid record. I am going to move to SYS(0) now that we've established it's working fine, in an upgrade eventually, however.

I used to do way more programming in C/C++, and for a real eye opener one time, we ran lint (a C utility) on our code. It found over 300 questionable pointer references in this one large program we had. The program never crashed, but after examining each of these places in the code, we could see where there was a potential for problem. I wish there was something like that utility for VFP! Like I said, you've just been lucky! (Tick, tick, tick...) :)