Rakki Muthukumar

my journey with microsoft technologies - IIS/ASP.NET/AJAX/C#/Javascript/IE

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  • Blog Post: IIS7 – Viewing ISAPI Filters that are loaded inside the worker process

    In IIS6 manager, you see a green arrow icon and a red icon against the ISAPI Filter’s list to indicate if the ISAPI Filter is loaded or not. That was possible because FilterStatus metabase key was updated after the ISAPI Filter is loaded inside the process. In IIS7, FilterStatus is no more, and nothing...
  • Blog Post: IIS – Rejecting a request from a specific client type(browser) | ISAPI Filter Example

    Recently I’ve come across a discussion where a particular type of client request should be blocked. Say for an example, you need to block requests from a client called “TrustMe”; consider a scenario where you need to serve pages only for Internet Explorer 7 clients, not IE6.0 clients. This kind of requests...
  • Blog Post: IIS - Sample ISAPI Filter doing Redirection to another website

    I know I'm in a very old world of writing ISAPI Filters to do the redirection instead of just creating an IHttpModule and plug it directly in the IIS7 request pipeline. But, one of my customer wanted this ISAPI filter and I made a fairly simple ISAPI Filter to do the redirection. Below sample doesn...
  • Blog Post: An ISAPI Filter converting ASPX to ASP

    I have posted about writing a simple ISAPI and also making that ISAPI bad and taking ETW traces to understand what is really going behind the scenes. I was thinking to write this extension conversion filter long back, but just had the time to complete it. This sample filter just reads the incoming request...
  • Blog Post: Writing a simple ISAPI Filter

    ISAPI Filters can be written to do anything on the incoming requests; it could do some kind of logging, user authentication, traffic analysis, much more. You can design you own ISAPI filter for your own need. Here is what I have done in the sample ISAPI Filter, it just writes into a file, some data when...
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