IIS 7.5 HTTP Error 404.3-not found error resolution _win server

iis7.5 installation is not installed by default asp/php/jsp supported

And the solution is simple.

Install the IIS feature again on the World Wide Web service-application development check ASP is all right ... Failure phenomenon:

IIS 7.5 Download File encountered 404.3

404.3 may have been caused by an unknown suffix of the file currently requested. Some less-common suffixes are not set in IIS, and files do exist on the server, and you may experience this error if the client requests that the file be downloaded.

You can resolve this problem by setting up MIME on IIS.

1. Double-click the MIME Type in IIS

2. Click the Add button in the right action

3. Enter the suffix name and MIME type in the pop-up window

The information that is filled out in the MIME type also affects the contents of the HTTP header content-type when the server returns to the client data. This content allows the client to know what information is being transmitted and what program to use to open it. Even if the same file is being transferred, Content-type may cause the client to open it in a different way. If you want to allow the client to prompt the user to download, try Application/octet-stream.