>I'm trying to use the timer control to make my app wait a specified time before executing code. Specifically, I have a form that users across the country are using to create a file that is stored on a server in a central location (Birmingham, AL). This file has the same name everytime and is stored in the same directory. When the file is written to the server, a process starts that will read the file and delete it. This allows other sites to subsequently submit their files. The problem I have is that multiple sites could submit their file at the same time, so I need to manage this to prevent one site overwriting another site's file before the process deletes it. I had an idea to use the timer control to manage this, but I'm having some problems with the syntax. I'm trying to use the interval property and the timer event method in some combination, but to no avail. Any ideas for the best way to do this would be very much appreciated.
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>p.s. I've tried using a "looping" structure (FOR... ENDFOR), but this is not ideal because each site has a different response time due to network issues (geographical distance from the server).

No needs for timer.
Just put the check in DO WHILE loop, soemthing like

DO WHILE .NOT. EMPTY(SYS(2000,"FullPathToFileHere"))
   DOEVENTS FORCE
ENDDO
....

BUT if the previous proccess exits w/o deleting the file this could cause an endless loop.