If you're planning to use the WinCreateObject or WinSetObjectData
PM APIs (or the corresponding SysCreateObject and SysSetObjectData),
be aware that the CONCURRENTVIEW setup string parameter has been 
renamed to CCVIEW.
This parameter is used when you want to create an additional instance
of a program each time you double-click on the corresponding program 
object.
If you want to enable that feature, specify CCVIEW=YES in your setup
string.

Franck Minssieux
IBM OS/2 Technical Support