You have replies at your other post.

Desaivres Alain wrote:

Hi

We have around 60 machines that need to have both Excel 2007 and Excel 2003
available... The problem we face is that depending on MS updates, the default
excel can change form day to day with the result that open Excel version on a
double clic will be either Excel 2003 one day or excel 2007 the other day...

Microssoft tell that this would be enough to Reregister on Excel -
visit http://support.microsoft.com/kb/214388/en-us/
Do you know the lightest way to realize that function using scrpiting if
possible...

Could be the case also that some "manipulations" into the registry keys
would work?
HKEY_CLASSES_ROOT\Excel.Application\CurVer = this key giving the default
Excel...

Thanks for your help
Alain

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Dave Peterson