Release 10.1A: OpenEdge Deployment:
Startup Command and Parameter Reference

Windows Single Session (-wss)

Use Windows Single Session (-wss) to limit a user to running only one OpenEdge client session at a time.

Operating system and syntax	Windows	-wss
Use with	Maximum value	Minimum value	Single-user default	Multi-user default
Client Session	–	–	–	–

This parameter applies only to a Windows GUI client. If an existing OpenEdge session is running on the machine when -wss is specified, the new session terminates and the windows of the existing session are brought forward to alert the user. To avoid unnecessary processing of other parameters, use the -wss parameter first on the command line.

If more than one OpenEdge application is installed on a user’s machine, do not use the -wss parameter else it will prevent a user from running two or more applications at the same time. In addition, the -wss parameter does not recognize versions of Progress prior to Version 9.0.