System Center App Controller Credentials Error

Question

Hi all
I completed scac 2012 but when I try login I got a error credentials
The credentials that were used to connect did not work. Verify the credentials and sign in again. If the problem persists, contact your administrator
I find event logs and I find this error 
Could not load file or assembly 'VMDKToVHD' or one of its dependencies. An attempt was made to load a program with an incorrect format.
Application information:
Application domain: /LM/W3SVC/2/ROOT/api-1-130310987286756300
Trust level: Full
Application Virtual Path: /api
Application Path: C:\Program Files\Microsoft System Center 2012 R2\App Controller\api\
Machine name: SCVMM3
Process information:
Process ID: 6340
Process name: w3wp.exe
Account name: IIS APPPOOL\AppControllerAppPool
I've tried      $ -Credential $Credentials   result ; 
Get-SCACServer -ServerName "https://scvmm3.scvmm.*.net" -Crede
ntial $Credentials
Get-SCACServer : InternalServerError: Internal Server Error
At line:1 char:1
+ Get-SCACServer -ServerName "https://scvmm3.scvmm.*.net" -Credential $Cre
den ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~
+ CategoryInfo : NotSpecified: ( [Get-SCACServer], WebException
+ FullyQualifiedErrorId : System.Net.WebException,Micros
SCAC SSL is ok, I'm using COMODO SSL.  I think error is    
Exception message: Could not load file or assembly 'VMDKToVHD' or one of its dependencies. An attempt was made to load a program with an incorrect format.
Please Help me 

Answer 1

Hi,
we had the same issue. Try to change the app pool settings  - Advanced Settings - enable 32 bit applications to "false" (Default after the Installation was "true").
After this change Login to app Controller was possible.
Regards
Marco