>Hi Len
>
>I was using an interval of 100ms on Windows 2000. This is part of a serial communication project. I eventually solved the problem by checking to see if the Timer was Enabled in the Timer Event. If it was not enabled I returned having done nothing.
>
>Simon

I can't remember if the reply mentioned I was using Win98. But following Christof's comments about a 10ms timer on NT, I thought I'd just point out that I've experienced much longer delays in stopping the timer. It is something to be aware of, especially if you have may multiple applications running.