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Feb 28 2024 07:00 AM - Feb 29 2024 10:30 AM (PST)
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IMAPIProp::GetProps failing with 0x80004005 after update to Outlook 2206

Brass Contributor



We are developing a VSTO addin that for many years has used the IMAPIProp::GetProps API to read properties of a message and then send them to a server for archiving purposes. This has worked fine for 10+ years. 

However, starting with Outlook 2206, which is now rolling out, we are suddenly seeing calls to this API fail with error 0x80004005. This is just a generic failure code and IMAPIProp::GetLastError returns "The client operation failed" (translated from Danish - why do you insist on localizing error messages?).


Is this an intentional change or just a bug? Any workarounds?

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