AutoCAD 2007/2008/2009

New Member
Posts: 2
Registered: ‎03-07-2012
Message 1 of 3 (933 Views)

ACAD 2009 Fatal Error - Unhandled Exception

933 Views, 2 Replies
03-07-2012 11:18 AM

I am running Windows 7.  A few weeks ago I got a Windows update and since then, I have not been able to run ACAD.  Upon start-up I get an error:


Exception in acmgd.dll  ARX Command

Unhandled Exception FFFFFFFF0434f4d  (e043f4dh) at address FFFFFFFFFD09a88dh


This continues to flash until I finally get a Fatal Error -


Fatal Error: Unhandled e0434f4dh  Exception at fd09a88dh


I have uninstalled and reinstalled ACAD.  I have removed and reinstalled my .net framework.  Nothing seems to work.


Any suggestions??

*Expert Elite*
Posts: 8,865
Registered: ‎06-29-2007
Message 2 of 3 (932 Views)

Re: ACAD 2009 Fatal Error - Unhandled Exception

03-07-2012 11:28 AM in reply to: RickWKM



>> A few weeks ago I got a Windows update

Have you installed an update over an existing OS? What OS have you had then before?

(And I hope you have not updated but formated you hd and a new install of Win7)


When you deinstalled AutoCAD had you done all to do a >>>clean uninstallation<<<, so nothing, real nothing left from AutoCAD?


BTW: AutoCAD 2009 is not supported for Win7 officially. Have you tried it to start in WinXP-compatibility mode?


- alfred -

Ingenieur Studio HOLLAUS ...
New Member
Posts: 2
Registered: ‎03-07-2012
Message 3 of 3 (852 Views)

Re: ACAD 2009 Fatal Error - Unhandled Exception

04-03-2012 02:07 PM in reply to: Alfred.NESWADBA

This was a new PC with Windows 7 installed on it.  I had been running ACAD 2009 for about 4-5months without any issues.


I have not tried to run it in Windows XP compatability mode.  How do you do that?


I am also not sure what you mean by a "clean installation".  After uninstalling it I used the original disk to re-install it.  I did see something about some cashe files remaining and my support files automatically loaded so it was probably not a clean install.  How do I do a clean install?



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