All ArcSDE instances have a limit on the number of concurrent users. If you reach the limit
you will get that message. If you have an Enterprise license, you can change CONNECTIONS
to a larger value (see the 'sdeconfig' command documentation), though you will eventully
start getting Windows errors instead of SE_CONNECTIONS_EXCEEDED if you set it too high.
Note: The non-interactive desktop heap OS connection limit is only on Windows server hosts,
and applies only to application server connections (not Direct Connect).
- V