.exe application from event manager

I've created executable file in Basic Program Editor in Cimplicity using "Create Program.." from menu list PointSet.exe.
Also I've created simple c# script that execute that script testPointSet.cs.pscript.

Next I made a few tests :
1. Run PointSet.exe with arguments in Windows command line. Works fine.
2. Run testPointSet.cs.pscript from CimScriptIDE by "Start" command from menu list. Works fine.
3. I've aded new event that runs testPointSet.cs.pscript every 1 minute. That does not work. Process PointSet.exe is stuck in Task Manager.

Windows Server 2008 R2.
I've tried to add all permissions to everyone for that file. It doesn't help.

I will appreciate any help.

Thanks,
Igor