Calling powerpoint from Excel

I am trying to open Powerpoint 2003 from Excel 2007 in a macro, in order to
paste a chart. When I run the macro, I get the following error message:

Windows cannot find '"C:\Program Files\Microsoft
Office\OFFICE11\POWERPNT.EXE'. Make sure you typed the name correctly, and
then try again. To search for a file, click the Start button, and the click
Search.

I think the error has something to do with a wrong file path, as it seems
there is an extra quotation mark " after the single '.

Does anyone have a suggestion about what to do?

Thanks in advance,

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