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Thunderbird Not recognized as default email app

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kirkdickinson
 
Posts: 45
Joined: October 2nd, 2007, 8:53 am

Post Posted January 11th, 2020, 10:54 am

I have checked and rechecked my settings in Windows 10 "Default Apps" and Thunderbird is set as the default app for email. I have changed it to Mail, rebooted, then changed it back and it still is not really recognized.

Here is what is happening. I have a couple of programs that will resize a photo and set it to the default email program as a new with the photo as an attachment. (Picassa and ACDsee)

This works on every other computer in my office, but not this one. There is something hosed in the registry.

Both programs report that there is either no installed email program, or I don't have a Default Email set.

I have spent an hour digging through the registry, but don't know what I am looking for.

Do I need to reinstall Thunderbird to fix this or is there a "repair installation" method?

Thanks,
Kirk

tanstaafl
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Joined: July 30th, 2003, 5:06 pm

Post Posted January 11th, 2020, 11:26 am

I think you are trying to have a windows application make a SimpleMAPI call to the default email client (Thunderbird). That is different from mailto: (what a browser uses) or just registering what application to open mail files (*.eml) if you double click on them.

Have you tried configuring Thunderbird to check if its the default email client, and if not, register itself using tools -> options -> advanced -> general -> system integration? That frequently works as long as you don't have another email client that does the same thing.

Can you get an application (such as MS Word) to call a different email client using SimpleMAPI? That would help check if your registry has the necessary keys to support MAPI. Whether Thunderbird is configured to use them is a separate issue.

See if https://www.techwalla.com/articles/how- ... epair-tool helps. It explains how to repair broken MAPI support (generic, not Thunderbird specific).

http://kb.mozillazine.org/Default_mail_client
http://kb.mozillazine.org/index.php?title=MAPI_Support

sfhowes
 
Posts: 491
Joined: April 1st, 2012, 10:21 am

Post Posted January 11th, 2020, 1:35 pm

Is your TB 64-bit or 32-bit? If it's 64-bit and the photo app is 32-bit, TB won't respond to MAPI commands. If TB is 32-bit, one method that sometimes fixes MAPI problems is to download and run the full installer over your existing setup, set TB as default email client during setup (Advanced setup option), then restart the computer.

kirkdickinson
 
Posts: 45
Joined: October 2nd, 2007, 8:53 am

Post Posted January 11th, 2020, 1:49 pm

[quote="tanstaafl"
See if https://www.techwalla.com/articles/how- ... epair-tool helps. It explains how to repair broken MAPI support (generic, not Thunderbird specific).[/quote]

Thanks. I think... :) You have sent me down a rabbit hole of MAPI that keeps getting deeper and deeper. The directions to run that tool simply say to change the name of a the Mapi32.dll to Mapi32.old then run the tool. No futher help is given about how that file is a protected system file and can't be renamed.

More searching. It can't be renamed because it is owned by "TrustedInstaller". After a while I find out how to change the owner to Administrator. Now I try to change, it won't let me, it tells me that I don't have permission, that Administrator has to give me permission. The Administrator account doesn't have permission to change the file, so after a bit I got that changed. Then it still won't let me change it. ERRRRR! Stuck.

I can always try to boot into Linux from a USB and bypass the UAC and change it?

kirkdickinson
 
Posts: 45
Joined: October 2nd, 2007, 8:53 am

Post Posted January 11th, 2020, 1:51 pm

sfhowes wrote:Is your TB 64-bit or 32-bit? If it's 64-bit and the photo app is 32-bit, TB won't respond to MAPI commands. If TB is 32-bit, one method that sometimes fixes MAPI problems is to download and run the full installer over your existing setup, set TB as default email client during setup (Advanced setup option), then restart the computer.


Thanks. I will have to check that. I will give that a try. :) Thanks.
Kirk

tanstaafl
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Post Posted January 11th, 2020, 2:32 pm

I hadn't run into TrustedInstaller before since its been many years since I've dealt with MAPI. Booting from Linux to change it is probably the quickest solution. You might have to mount the NTFS system if your Linux distro doesn't enable that by default. I suggest you think about using a system rescue cd/USB drive from http://www.linuxandubuntu.com/home/top- ... rescue-cds instead of a live Linux distro, if you don't already have one available on a USB drive.

https://www.howto-connect.com/how-to-ta ... indows-10/ or https://troubleshooter.xyz/wiki/delete- ... installer/ might help if you don't want to boot Linux.

kirkdickinson
 
Posts: 45
Joined: October 2nd, 2007, 8:53 am

Post Posted January 11th, 2020, 3:11 pm

sfhowes wrote:Is your TB 64-bit or 32-bit? If it's 64-bit and the photo app is 32-bit, TB won't respond to MAPI commands. If TB is 32-bit, one method that sometimes fixes MAPI problems is to download and run the full installer over your existing setup, set TB as default email client during setup (Advanced setup option), then restart the computer.


All 32 bit. The programs sending the photo request and Thunderbird. In fact, it seems to be the default download. I downloaded a fresh one and installed over the existing. No Change. Maybe an uninstall and reinstall might do it. ???

kirkdickinson
 
Posts: 45
Joined: October 2nd, 2007, 8:53 am

Post Posted January 11th, 2020, 3:14 pm

tanstaafl wrote:I hadn't run into TrustedInstaller before since its been many years since I've dealt with MAPI. Booting from Linux to change it is probably the quickest solution. You might have to mount the NTFS system if your Linux distro doesn't enable that by default. I suggest you think about using a system rescue cd/USB drive from http://www.linuxandubuntu.com/home/top- ... rescue-cds instead of a live Linux distro, if you don't already have one available on a USB drive.

https://www.howto-connect.com/how-to-ta ... indows-10/ or https://troubleshooter.xyz/wiki/delete- ... installer/ might help if you don't want to boot Linux.


I have a Linux Rescue disk that I have used before to zero out admin passwords when they were lost. I can't seem to find it right now. It had NTFS drivers on it.

I will get a fresh one. Thanks for the link.

As far as changing from trustedinstaller, I have sucessfully done that. Still doesn't work. When I try to rename the file, I get an error that says "You need permission to perform this action"
You require permission from XXX\Administrator to make changes to this file. That is me! That is the admin account that I am logged in with.

Kirk

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