Created On:  14-05-2010
 
When enabling extensions against my application on Windows 2008 R2 x64, why does the test button not become enabled?
 
Windows 2008 R2 x64 contains a registry key value that prevents the loading of unsigned dlls. The registry key value in question is "RequireSignedAppInit_DLLs" and is generally located in:

"HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Windows"

The default value for this key is "1", this value must be changed to "0" to allow the enable extensions process to execute successfully.

Incident #2446662