AX 2012 Crashes on Start up for only one user.

Question Status

darktrancer asked a question on 1 Feb 2013 6:23 PM

Here is what i have found in the event log.


Application: Ax32.exe

Framework Version: v4.0.30319

Description: The process was terminated due to an unhandled exception.

Exception Info: System.AccessViolationException


   at <Module>.NavigationPaneHost.LoadMenuW(NavigationPaneHost*)

   at <Module>._wWinMainCRTStartup()




Faulting application name: Ax32.exe, version: 6.0.1108.670, time stamp: 0x4fe8e851

Faulting module name: MSVCR90.dll, version: 9.0.30729.6161, time stamp: 0x4dace5b9

Exception code: 0xc0000005

Fault offset: 0x0003ae7a

Faulting process id: 0xfb44

Faulting application start time: 0x01ce00eb2321ce79

Faulting application path: C:\Program Files (x86)\Microsoft Dynamics AX\60\Client\Bin\Ax32.exe

Faulting module path: C:\Windows\WinSxS\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\MSVCR90.dll

Report Id: 67cc990c-6cde-11e2-91f0-d4ae5290231b


Can anyone point me in the right direction?

Brandon Ahmad responded on 1 Feb 2013 7:35 PM

You need to check the configuration file on the client.  This is caused by a number of things, but it usually concerns these settings.  I'd see if ithe client was pointed at the right server first.  

Go to  Start > Control Panel > Administrative Tools > Microsoft Dynamics AX 2012 Configuration, and start comparing settings to users with working accounts. You'll probably find something.

Verified Answer
Tim Schofield responded on 2 Feb 2013 1:51 AM

Try clearing usage data and deleting user cache

darktrancer responded on 4 Feb 2013 12:44 PM


Thank you for that suggestion. Clearing out the .auc file from the users profile fixed the problem.

dwfeath responded on 16 Oct 2013 4:15 PM

How do you do this?   "Try clearing usage data and deleting user cache"  (AX32 is on a citrix server)  other users are not having this issue....Thanks in advance....

Tim Schofield responded on 16 Oct 2013 6:20 PM

Usage data is held within AX.

Login as the user. Go to File > Tools > Options > Usage data and click the Reset button to delete all usage data. Then log off and log back in.

Clearing the cache is a bit tricker, becuase where it is depends a bit on the operating system. You're looking for files with a .auc extension and they're probably in something like C:\Users\xxxx\AppData\Local

jeffraid responded on 18 Feb 2014 6:22 PM

Is there any option to clear this cache automatically? I have more than 10 users that same symptom, and I always clear it each of them every month. Thanks.

Tim Schofield responded on 18 Feb 2014 6:46 PM

What version of AX?

We have just gone live on AX 2012 R2 CU6. There were a lot of client crashes caused by End user form personalisation. We cleared the 'Form pre-loading enabled' option at System administration > Setup > System > Client performance options and that solved the issue, but I have heard that  the underlying issue is fixed in CU7.

jeffraid responded on 19 Feb 2014 11:33 PM

Tim,  we  are running AX2012 R2 with no cumulative update (version, and yes we  have a lot of user  forms customized.

This error shows only in branch office with Citrix XenApp, users in HQ never get this error.

I am gonna try as you said Tim, let's see next month.


Jahan Zaib responded on 13 Mar 2014 1:21 AM

This solved my problem I cleared usage data and the error is gone. Thanks TIM

Ariston Javier responded on 18 Mar 2014 12:16 AM

Thanks for the information.

It also works to me.

Dillon Bailey responded on 24 Sep 2014 7:43 PM

We were able to find the files in C:\Users\xxx\AppData\Local\Microsoft\Dynamics Ax\ <look through all files>

This was also an issue for us after upgrading to AX 2012 R3


Verified Answer
Tim Schofield responded on 2 Feb 2013 1:51 AM

Try clearing usage data and deleting user cache