Hi Paul,

Thank you for the reply.

I am having the problem with one excel instance opened manually from
Windows start - run prompt and other excel opened from the GUI using
a VB Script. I do not want to refer to the previously opened excel
instance in my VB Script.
steps to reproduce a
a. open excel.exe from windows - start - run prompt
b. launch my GUI which in turn shows an Excel chart using VB Script
c. Now at this point, I am unable to switch back to the excel.exe
opened in step a.

Is this good enough to understand my problem ?

Thanks,
Ravi Nandibhatla.