Hi
I think you may also try in the newsgroup below.
microsoft.public.vsnet.vstools.office
Also I do not think that the Office XP will prevent VSTO from working.
Based on my research, I did not find any similar case.
For your concern, that the Microsoft Support did not reply to you.
Have you tried to make a phone call to the Microsoft support directly?
Thanks for your understanding!
Best regards,
Peter Huang
Microsoft Online Partner Support
Get Secure! -
www.microsoft.com/security
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