Summary
When accessing the WFBS console or configuring the Messaging Security Agent (MSA) component, the following error occurs:
HTTP Error 500.0 - Internal Server Error
Calling LoadLibraryEx on ISAPI filter "C:\Windows\Microsoft.NET\Framework\v4.0.30319\\aspnet_filter.dll" failed.
Details
The above error appears, because of an incorrect path that was set on the ISAPI filters of OfficeScan or SMEX website in IIS.
To resolve this:
- Open IIS Manager.
- Select which site you want to configure
- For WFBS Console: Expand Sites > OfficeScan.
- For MSA Console: Expand Sites > SMEX Web Site.
- In the middle pane, select ISAPI Filters.
- Expand the columns as required and look for an Executable path with "\\".
- Click Edit:
From the above screenshot, change the "\\" to "\". The path will be:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_filter.dll
- Restart the IIS service and access the WFBS or MSA console again.
