Exchange 2013: Unable to open ECP while OWA is opening
Today, I was handing this issue and thought of sharing as there is no other blog available.
In this environment Owa was working just fine.
No other issue reported with Exchange 2013.
When we tried to open the ECP, we got the following error.
HTTP Error 500.21 – Internal Server Error
Handler “StaticFile” has a bad module “DefaultDocumentModule” in its module list.
The good thing about this error page is that it tells the resolution in Things you can try:
-Checked the web.config at c:inetpubwwwroot folder. No issue found.
-Checked IIS all looked good but DefaultDocumentModule found missing at IIS à Default Web Site à ECP à Modules
And at IIS à Exchange Back End à ECP à Modules
-Checked the applicationhost.config file for the modules at c:windowssystem32inetsrvconfig for the following entries. These entries were missing on this server.
<add name="DefaultDocumentModule" lockItem="true" />
-Ran the below cmd to add the Module.
c:windowssystem32inetsrvappcmd.exe install module /name:DefaultDocumentModule /image:%windir%system32inetsrvdefdoc.dll
You should see the below screen
If the module is already present then you will see the below screen
Issue got fixed.
Microsoft MVP | Exchange Server