I can't see the earlier posts, what's the objective.
If it's to add/remove addins from the collection these are the locations to
read/write (with all Excel instances closed).

HKCU\Software\Microsoft\Office\v.0\Excel

then for xl97, v=8, Installed addins
\Microsoft Excel

and later versions v = 9 to 11, installed addins
\Options

xl97-2003, v = 8 to 11, non-installed addins
\Add-in Manager

don't know about Excel-2007, but same in W98 - Vista.

Regards,
Peter T

"Howard Kaikow" wrote in message
...
"Howard Kaikow" wrote in message
...
Does the following key exist in the Windows XP and Windows Vista
registries
for an installed Excel?
The example is for Excel 2003 (version 11).

'[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared
Tools\MSInfo\Categories\Applications11\Excel11]


Sigh!

The key does not exist for Excel 97.

The following works, but has the extraneous " Application".

[HKEY_CLASSES_ROOT\Excel.Application.8]

@="Microsoft Excel 97 Application"



I'll now give it a try with Excel 2000, Excel 2002, and Excel 2003/