Changing the IhttpHandler

From: Yama (yama@yamabiz.com)
Date: 02/18/03 

From: "Yama" <yama@yamabiz.com>
Date: Tue, 18 Feb 2003 08:38:49 -0800

Hi,

I am trying to change or rather create a new extension that point to:

C:\WINDOWS\Microsoft.NET\Framework\v1.0.3705\aspnet_isapi.dll

With an extension of, for example, .yama (dotyama)

So I go to IIS MMC
right click on on a virtual directory
then click on configuration
on the mapping tab I click Add
in the executable textbox I click browse and map it to:
C:\WINDOWS\Microsoft.NET\Framework\v1.0.3705\aspnet_isapi.dll
In the extension textbox I type in .yama

PROBLEM
I am having the issue that the OK button remains disable?!

Why is that? Can anyone help me resolve this problem? Is there something I need to do before trying to perform the above?

Thanks,

Yama