Fatal Error Unhandled e0434f4dh exception 7c812afbh

[llagrange]

I have AutoCad Map 3d 2010 loaded on a computer and whenever I open ACAD, I get the Fata Error listed above.  I have uninstalled reinstalled and still the same thing.  Can anyone please help me? 

Thanks.

Lynnette LaGrange

[rick-chappell]

  A lot of times that's a problem with the .NET Framework code. There's an Autodesk KB on the topic:

http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=13109351&linkID=9240617

  That's probably the best place to start. Sometimes we've had to completely uninstall the Framework items and reinstall.

  Rick Chappell

  http://www.cadsoft-consult.com/blogs/geo/

[comanche]

I had the same issue and couldn't open CAD.   After trying a few thing, I came to conclusion that something on my profile is buggered.  Deleted it and then all worked fine. (AutoCAD 2010)

Delete these two folders:

WinXP:
C:\Documents and Settings\USERNAME\Application Data\Autodesk\AutoCAD 2011
C:\Documents and Settings\USERNAME\Local Settings\Application Data\Autodesk\AutoCAD2011

Win7/Vista:
C:\Users\USERNAME\AppData\Roaming\Autodesk\AutoCAD 2011
C:\Users\USERNAME\AppData\Local\Autodesk\AutoCAD 2011

If you still have issues, you might have to delete a registry key, found in the following link: CADforum Tip #7475

[christine.henglein-west]

I am amazed at how frequently .NET corrupts on systems with Autocad installed.  We have other applications that require .NET and none of them have ever had a corruption issue.  With Autocad Electrical 2012, it seems like I have to pull out the .NET FX Cleanup tool at least once a week to get one of my 50 installs working again.