disable Data Execution Prevention

Also had a struggle to find the option to disble DEP in Windows Server 2008 R2.

Use a elevated command prompt or it won't work. Or just disable the UAC.

See below, the answer is here:


One possible choice is to turn on DEP support unconditionally:

bcdedit /set {current} nx AlwaysOn

In this mode, the DEP support options GUI is disabled and no exceptions can be defined. Any DisableNX compatibility options will also be ignored.


The opposite is to turn off DEP support completely:

bcdedit /set {current} nx AlwaysOff

With this setting in effect, the DEP support options GUI will be disabled as well as with the first option. To return to one of the GUI switchable modes, use:

bcdedit /set {current} nx OptIn

For the workstation default, which enables DEP support for Windows essential programs and services, or:

bcdedit /set {current} nx OptOut

For the server default, enabling DEP support for all executable files. The Windows machine must be rebooted each time for the bcdedit command to take effect. The output of the command:

bcdedit /enum

This will tell you the current status of DEP.

DNS errors in your Exchange Que?

Hi,

Ever found out why some messages are stuck in your Exchange Que? With one of these errors:

451 4.4.0 DNS Query Failed
400 4.4.7 Message Delayed

Just read on and i will explain how to solve it.

Open your Exchange Management Console



Go to: Server Configuration > Hub Transport > Properties. The screen below will pop-up.

 

Then go to the tab: Internal DNS. If you have one or more Network adapters, like i have. Select the right adapter. If you've selected the right one, the DNS field will be filled in for you.



Also take a look at the External DNS Lookups tab. And select the same adapter here like you did earlier.




 With these settings the errors in the Que will be gone.