Best way to poll for existence of a file?

[Boaz Bezborodko]

I am updating a shipping system to integrate with UPS's Worldship.  I 
was going to use their "Hands-Off" shipping method that polls for the 
existence of a data file in a specific directory and imports the data if 
something exists.  It can then generate a file with shipping data like 
tracking number and freight charges to a specific file.  I want to poll 
for that file with FPro and import the data when it exists.   I am using 
Windows FP 5.6 off a Samba server.

I was thinking of just setting up one rclerk or rreport operation to 
just sit there and check for the existence of the file every couple of 
seconds or minutes (using SLEEP) and import the data when something 
exists.  It just seems a little cludgy to me.  Does anyone know of any 
more elegant solution to doing this?


BTW, best of luck to all of those attending the meeting.

Boaz