Outlook 2010 VBA fails to launch

AlanOlrog

Member
Outlook version
Outlook 2010 32 bit
Email Account
POP3
For some years I've successfully used the "Auto Bcc" VBA procedure from Slipstick (using Outlook 2010).
After recently doing an in-place upgrade of Windows I found that the procedure was no longer running because my self-signed certificate was apparently not recognised. It would only run if I enabled ALL macros in the Trust Centre.
I went through the self-signing procedure several times, even creating a new certificate, but without success.

After the last attempt Outlook VBA would no longer launch, so I now have two problems.
If I start Outlook in Safe mode, VBA will launch OK (though the macro is still blocked).

I read that the failure to launch could be due to an add-in problem. However, in Options there were no active add-ins. I noticed that after starting in Safe mode and launching VBA, the "Microsoft VBA for Outlook Addin" became active. I don't know if this enablement is meant to be "on-demand".

I'd appreciate any input. Should I try an Office 2010 repair? I'm interested to know what's broken.
 

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
The OTM files is probably bad. Is that the only macro you use or do you have backups?

Rename the OTM at %appdata%\microsoft\outlook then restart outlook and add the macro back and sign it.

As for why it failed, did you remove the signature, save the VBA then re-sign it?
 

AlanOlrog

Member
Outlook version
Outlook 2010 32 bit
Email Account
POP3
The OTM files is probably bad. Is that the only macro you use or do you have backups?

Rename the OTM at %appdata%\microsoft\outlook then restart outlook and add the macro back and sign it.

As for why it failed, did you remove the signature, save the VBA then re-sign it?
Hello Diane, and thanks for such a quick response.
I had only two macros that I use, plus a "Hello" message box test.
In case I'm stupidly missing some basic step I'm giving a detailed account of what I did from your suggestion.

(Trust Centre set to allow digitally-signed macros only.)

• Rename VbaProject.otm. Start Outlook in Safe mode. Launch VBA
• Create Sub Test (Call MsgBox("TEST")) in ThisOutlookSession.
- No digital signature
- Sub runs OK
• Save VBA (VbaProject.otm created). Sub still runs. Close VBA.
• Close Outlook (no prompt to save)
----------------------------------
• Re-start Outlook in Safe mode. Launch VBA
- Sub is blocked (as expected).
• Add my digital certificate. Save and close VBA.
• Close Outlook (prompted to Save) and save.
----------------------------------
• Re-start Outlook in Safe mode. Launch VBA
- Digital signature in place.
• Sub is blocked.
----------------------------------
• Re-start Outlook normally.
- VBA will not launch.
----------------------------------
I then re-started in Safe mode, removed the certificate, saved & closed, re-started and added the certificate again. Same results as above.

My certificate is present in the (Current User) Personal, Trusted Root Certification Authorities and Trusted Publishers stores. It's also present in the (Local Computer) Trusted Root Certification Authorities store.
The certificate works OK for Excel VBA projects.
Any further suggestions would be most welcome!
 
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