Hi, Please open a command prompt, and navigate to: c:\windows\microsoft.net\framework\<your framework version number>\ (replace windows with winnt if you using Windows 2000) and run the command: aspnet_regiis.exe -i which will install all the necessary ASP.NET hooks into IIS, and move the ASP.NET client libraries into your existing website(s). This command is called by .NET Framework setup if it detects you have IIS installed, so you're basically just doing what .NET Framework setup would have done. Cheers Ken On Thu, 30 Sep 2004 12:54:20 -0500, Casey Crookston <casey at thecrookstons.com> wrote: > These may sound like silly questions, but > > 1. Does your page have an .aspx extension? > 2. Have you installed ASP.NET on your server? > > If both of those are "yes", then it sounds like someone may have tampered with the ISAPI mappings for IIS. > > These are not silly questions. Yes. Yes. > > The only thing I have been able to learn from Google is, just as you have confirmed, is that this has something to do with the ISAPI mappings. But, where on earth do I go from here?