27 October 2011 by Web Bureau
Within IIS you need the following lines of code:
Withing the node of web.config section of web.config you need the next 2 lines in the correct order:
<verb="GET" path="/Robots.txt" type="HandlerExample.MyHttpHandler">- this one handles the robots.txt file
<add path="*.txt" verb="GET" type="System.Web.StaticFileHandler" /> - this one handles other .txt files and serves them corectly
Within a class you will need the code to handle the robots file that is written out dynamically.
Getting IIS to Pass .txt Requests to ASP.NET
At the moment, IIS is still serving the txt files instead of letting .NET know about them – the request for a .txt file doesn’t even reach .NET. Lets tell IIS to pass that request through to .NET.
Get the path to the ASPX engine
Create the ISAPI Entry for .txt
You are still on the Mappings Tab for your site in IIS 1. Click “Add” 2. Populate the Executable path with the value you copied in the last section 3. Enter “GET” in the “Limit To” field 4. Untick the box "Verify that file exists". Press OK a million times to save all your changes. You’re done with IIS.
Check the result
When you now try to browse to your text file you should get a blank page. This means IIS is now passing the request to ASP.NET, but ASP.NET doesn’t know what to do with it.