I can't seem to open a PowerPoint 2000 file via automation.

The expected commands:

oPPT=CREATEOBJECT('PowerPoint.Application')
oPPT.Presentations.Open("filename.ppt")

result in this error message: ...the PowerPoint frame window does not exist....

I have been searching and have found no reference that helps me. Does anyone know how to do this simple task?

Many thanks,

Mike