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Member
zena11
Posts: 4
Registered: ‎03-14-2008
Message 1 of 12 (2,404 Views)

Unhandled Exception E0434F4D

2404 Views, 11 Replies
03-14-2008 07:02 AM
Using AutoCAD Lt 2008 on XP and out of the blue comes this message:
Unhandled Exception E0434F4D at 7C812A5Bh. Some functions are not working and I'm at a loss to figure this one out. Any ideas?
*Dean Saadallah
Message 2 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

03-14-2008 07:34 AM in reply to: zena11
What were you doing when it came up?
What functions stopped working?

have you tried a repair reinstall yet?

--
Dean Saadallah
http://LTisACAD.blogspot.com
Add-on products for LT
http://www.pendean.com/lt
--
Member
zena11
Posts: 4
Registered: ‎03-14-2008
Message 3 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

03-14-2008 08:21 AM in reply to: zena11
Dean,
It first happened when I opened the program. I tried the repair/reinstall and the same message came back. I'm not able to access layer properties, any web functions and the program just seems a bit sluggish. Thanks for the suggestions.
Member
zena11
Posts: 4
Registered: ‎03-14-2008
Message 4 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

03-14-2008 03:35 PM in reply to: zena11
Found the problem. Microsoft's .NET Framework version 2.0 was corrupted (I've never used it) and somehow it caused the acadlt.exe to take the wrong path. I repaired the program (it had caused over 300 bad registry entries) and everything works fine. I really should have known it was in the OS as I've never had any failures using ACAD products.
*Dean Saadallah
Message 5 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

03-15-2008 07:56 AM in reply to: zena11
thanks for the follow-up, it helps everyone to share fixes.

--
Dean Saadallah
http://LTisACAD.blogspot.com
Add-on products for LT
http://www.pendean.com/lt
--
New Member
bumbie13
Posts: 2
Registered: ‎04-14-2008
Message 6 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

04-14-2008 10:47 AM in reply to: zena11
How did you repair the program? I've tried the fixes recommended by AutoCAD and none of them work. I've also not updated to the .NET Framework v2.0 because it will not install properly.
*Dean Saadallah
Message 7 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

04-14-2008 11:32 AM in reply to: zena11
Uninstall .NET, all versions, in Windows, then reinstall the one you need.

--
Dean Saadallah
http://LTisACAD.blogspot.com
Add-on products for LT
http://www.pendean.com/lt
--
New Member
bumbie13
Posts: 2
Registered: ‎04-14-2008
Message 8 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

04-14-2008 11:56 AM in reply to: zena11
So, when I am unable to uninstall, I guess I just get out the bigger hammer, right? I get errors and messages like: "In order for this product to uninstall it must be installed."
*Dean Saadallah
Message 9 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

04-14-2008 12:53 PM in reply to: zena11
Now that's a good error message: try Microsoft's open discussion areas, like
these here, for help while you wait here for others to jump in.

--
Dean Saadallah
http://LTisACAD.blogspot.com
Add-on products for LT
http://www.pendean.com/lt
--
Member
WESMCKENZIE3499
Posts: 3
Registered: ‎04-07-2010
Message 10 of 12 (2,404 Views)

Re: Unhandled Exception E0434F4D

04-07-2010 09:50 AM in reply to: zena11
I solved this issue by starting AutoCAD 2010 while running procmon from Sysinternals ( http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx ). I noticed several errors when AutoCAD tried to read the .NET machine.config file.

I granted "Read" and "Read and Execute" to the local group "Users"
for the file "C:\Windows\Microsoft.NET\Framework\v2.0.50727\CONFIG\machine.config"

It then ran with no issues.

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