DCOM 10016 error

It is annoying errors, related to permissions to start processes with different system accounts (system and most often network services). So do like this:

1. To assign permissions
   Using Regedit, navigate to the following registry value HKCR\Clsid\clsid value\ The clsid value is the information displayed in the message. From here you can see application name which could not start.


2. From Administrative Tools, and then double-click Component Services.
   In the Component Services snap-in, expand Computers, expand My Computer, and double-click DCOM Config.
   In the right pane, locate the program by using its name.
   Right-click the program name, and then select Properties.
   On the Security tab, in the Launch and Activation Permissions group box, select Customize, and then click Edit.
   Add the user (system account) to the permissions list, and give the account the appropriate permissions.

Change schema master role

I had a problem to change schema master role DC with w2k3 Enterprise Edition through GUI interface (MMC). So it should be done through (somebody has same problem with server 2008) :

"There are a few ways to achieve this - I would use the NTDSUTIL tool.

• From the 2008 DC, run ntdsutil from a command prompt
• type ROLES and then enter
• type CO and then enter
• type CO TO SERVER and then enter
• type Q and then enter
• type TRANS SC MA and then enter
• you will be prompted with a GUI box whether you want to transfer the schema FSMO to that DC, click Yes
• Q and then enter
• Q and then enter"

From Stuard Hudman response in a forum.