Hmm, I got the error to stop and performed a successful loan signing by disabling all the adobe add-ons in Internet Explorer.
Click the gear icon > Manage Add-ons
Highlight all 4 items under Adobe Systems, Incorporated and click Disable
Adobe PDF Link Helper
Adobe PDF Conversion Toolbar
Now it worked.
I just have to see what the add-on GUID is and try to come up with a regedit (since this only applies to HKCU). I need to create a .reg script that is imported for any user that logs on to ensure these bad add-ons are disabled.
Now maybe it was coincidence but disabling these 4 add-ons clearly fixed my IE9 crashing problem. I never did like Adobe acrobat add-ons anyway. If I wanted to convert the page to PDF I would simply print and choose Adobe PDF as my printer... duh. And who needs additional toolbars taking up screen real-estate and complicating the UI.
Well that didn't fix all of them.
I have another trouble machine and even with those add-ons disabled, opening a PDF in browser with signatures embedded result in:
Log Name: Application
Source: Application Error
Date: 4/4/2012 11:43:45 AM
Event ID: 1000
Task Category: (100)
Faulting application name: iexplore.exe, version: 9.0.8112.16421, time stamp: 0x4d76255d
Faulting module name: mfc100.dll, version: 10.0.30319.415, time stamp: 0x4d26e497
Exception code: 0xc0000005
Fault offset: 0x00246293
Faulting process id: 0x1420
Faulting application start time: 0x01cd1279b68a4476
Faulting application path: C:\Program Files (x86)\Internet Explorer\iexplore.exe
Faulting module path: C:\windows\system32\mfc100.dll
Report Id: f5cddc7a-7e6c-11e1-ad5a-4c80931d5ba9
<Provider Name="Application Error" />
<TimeCreated SystemTime="2012-04-04T15:43:45.000000000Z" />
<Data>C:\Program Files (x86)\Internet Explorer\iexplore.exe</Data>
I also just ran into this issue with IE faulting at module mfc100.dll.
Latest build of Adobe Reader XI and Internet Explorer 9.
I followed the instructions to disable all Adobe Addons in IE and this resolved the issue.
Will there be a fix for this so we can display PDF's in browser and still sign documents?