A process serving application pool ‘AOSService’ suffered a fatal communication error with the Windows Process Activation Service.

When trying to host the Demo VM in the company’s data centre (host) we came across the below error-

A process serving application pool ‘AOSService’ suffered a fatal communication error with the Windows Process Activation Service. The process id was ‘3680’. The data field contains the error number.

One thing I attempted to do, based on some suggestions on the web, was to “Enable 32-Bit applications” in the app pool.

This simply changed the error message to below-

Could not load file or assembly ‘Microsoft.Dynamics.AX.Security.SidGenerator’ or one of its dependencies. An attempt was made to load a program with an incorrect format.

I tried all the usual tools to try to troubleshoot the issue-Fiddler, Procmon, but no lead. Finally reached out to my mentor Brandon Ahmad . He was quick to point out to check the time zone on the Demo VM which may not be matching the host machine.

The demo VM was set on US Time Zone and the host was set to Singapore Time Zone, once I changed the timezone in the demo VM to match the host, that fixed the issue!

 

-Hitesh  Manglani

Update SQL Server Management Studio

If you get the following prompt while trying to Browse properties of your Database in SQL Server management studio, its time for an update.

“Cannot show requested dialog” 

“Method not found: ‘System.Collections.Specialized.StringCollection”

SQL Server Properties Error

Next step would be to  click on Tools-> check for Updates and you would most likely have an update waiting to be installed.

SSMS Update 

Click on Update in the above screen to be redirected to the link to download latest version of SQL Server Management Studio. (17.6 at the time of this writing).

Once the update is completed you would need to restart the machine.

 

-Hitesh Manglani