User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 When reading an e-mail bounce message (which I'll try to attach), Mozilla produces a pop-up error saying "the ordinal 21 could not be located in the dynamic link library MAPI32.dll". Reproducible: Always Steps to Reproduce: 1. Click on the "problem" message from within Mozilla's mail list Actual Results: Dialog box saying "the ordinal 21 could not be located in the dynamic link library MAPI32.dll" pops up with an OK button. Expected Results: Message should display normally.

The message had something attached, which I'll add separately.

I see this message appearing when some thirdparty messaging program that expects the default mapi32.dll starts up. I think it is a missing functionality in the Mozilla MAPI interface but I have no idea what it should do.

Looks similar to the problem described in bug 109362. See bug 109362 comment 11 & 36. Bruce Feist, if that fixes your situation, please mark this bug as a dupe of that one.

*** This bug has been marked as a duplicate of 109362 ***

I haven't run into this problem for a long time, as I've upgraded Mozilla and shifted my usage of other programs around. Bug 109362 does look as though it could be the same thing, so I'm marking this as a duplicate of it.