Dynamics AX 2012 R2 software upgrade checklist can't expand on windows server 2012

After we upgrade the AX 2012 R2 into a new CU we need to do the sofware checklist update inside AX as a routine after installing the hotfix or CU. If we open the client and run the software checklist update on Windows Server 2012, the check list item can't expand when we click the expand (+) and if the check list item can't expand then we can't go through the check list process.

I'm not sure what is the missing part here but looks like Windows server 2012 not certified yet for Dynamics AX 2012 R2 client.
To solve this issue we need to run the software update checklist in AX client under supported client OS (I have tested in Windows server 2008 R2 and Windows 7).

Testing out new tools AxBuild.exe from CU7 for parallel compiler

A new tool came out in Dynamics AX 2012 R2 CU7 which is AxBuild. This tool really help us to make the compiler run faster. Here is the screenshot of the parallel compilation using AxBuild.exe.

I have tested my self this tools run in virtual machine and it takes 1 hour 5 mins to do the full compilation.

For more information you can go to this link.
http://msdn.microsoft.com/library/d6da631b-6a9d-42c0-9ffe-26c5bfb488e3.aspx
and
http://blogs.msdn.com/b/axtools/archive/2013/11/04/parallel-x-compilation-for-microsoft-dynamics-ax2012-r2-in-cumulative-update-7.aspx

Unable to find a unique Dimension code combination record corresponding to the entered values. error in dimension AX 2012

Recently I found an error when I build a SegmentedEntry in another customize form just like LedgerJournalTransDaily form.

"Unable to find a unique Dimension code combination record corresponding to the entered values." (can't find this error in label too)
When I try to debug the error I can't find any clue because this error send the notification after the modified event of the control. (I might miss some of the call stack that lead to this modified event). I tried to look again the standard function and found that I miss something in the "LedgerDimension" datasource field method, the method name is "resolveReference".
Here is the sample method code:
public Common resolveReference(FormReferenceControl _formReferenceControl)
{
    Common common = offsetLedgerDimensionController.resolveReference();

    return common;
}

Dynamics AX 2012 R2 client crash when doing full compilation on windows server 2012

I don't know what cause this client crash when we do the full compilation of Dynamics AX 2012 R2 on windows server 2012. I just found only few times I didn't get the AX client crash but 90% it will crash.
Some forum in Microsoft said that Windows Server 2012 only certified for the AOS but not for the client.
I have tried do the full compilation for the Dynamics AX 2012 R2 CU1 and CU6; both have the same client crash.

One of the solution that I found is to run the full compilation using Dynamics AX client running on Windows server 2008 (with or without R2) or Windows 7.

Missing labels after upgrading to AX2012 R2 CU6 or CU7

After you upgrade Dynamics AX 2012 R2 you will find there is a missing label in the software upgrade action in the beginning when you start the AX client.
Here is a link to fix that.
http://blogs.msdn.com/b/axsupport/archive/2013/07/12/missing-syp-labels-after-upgrading-to-ax2012-r2-cu6.aspx

• Stop AOS
• Delete *.ald file in the Microsoft Dynamics AX\60\Server\<instance>\bin\Application\Appl\Standard
• Start AOS