I have 80 users running application under W3K terminal server.

Sometimes LOCK() function fails or REPLACE command returns error
"Record is in use by another user".

To fix this I will try to use following settings in each datasession init:

SET LOCK OFF
SYS(3051, 1000) &&  Set Lock Retry Interval
SYS(3052, 1, .t. )  && Overrride set reprocess locking
SYS(3052, 2, .t. )
* This causes 60 seconds delay before reporting error:
SET REPROCESS TO 60
SET REPROCESS TO 60 SYSTEM

Are those best valuest ?
Are there any other VFP9 or W3K server config parameters which can be changed?