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Problems opening Localhost: HTTP Error 500.0 - Internal Server Error

We have sometime experienced problems with opening Localhost on the server.

The following error:

HTTP Error 500.0 - Internal Server Error may occur.












This is caused by 1 or 2 things both related to errors in the following path:

C:\Windows\Microsoft.NET\Framework\V4.0.30319\\aspnet_filter.dll

If working on a 64-bit server the Framework also have to be Framework64 and not just Framework as in the path above. Also if .NET 1.1 is installed the URL for isapi filter can be currupt with two \\ insead of one

which result in error HTTP (Morten Hjelmvig).

So the correct path is is:

C:\Windows\Microsoft.NET\Framework64\V4.0.30319\aspnet_filter.dll



This is how to correct the error:

• Go to control panel
• open Administrative Tools
• Open Internet Information (IIS) Manager
  

• Select Default Web Site
  ( in tree in the left side)
  

• In the Center Pane: Double click ISAPI Filters
  

• double Click the generic ASP.Net_4.0 entry and set the exceutable path to:
  

C:\Windows\Microsoft.NET\Framework64\V4.0.30319\aspnet_filter.dll

	Name	Size
	Localhost error_01.jpg.png	181.77 KB
	Localhost error_02.jpg.png	161.18 KB
	Localhost error_03.jpg.png	194.13 KB
	Localhost error_04.jpg.png	118.41 KB
	Localhost error_05.jpg	74.74 KB