My horrible experience with IIS

Tried installing IIS in my XP Pro. After install, initially the localstart.asp is erroring out with HTTP 500 server error. Resolution :
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Please make sure that anonymous authentication is not selected for the localstart.asp file as per the instructions in KB Article 251361.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q251361
It does not matter if you are logged on as administrator or not. The RFC says that the client is supposed to try anonymous authentication first, which the client does. If this authentication method is supported (enabled), the client has no reason to try to authenticate, and the anonymous user account specified on the server will be used to run the ASP file. This user account does not have permissions to the metabase, hence it fails with this error message.
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So, I unchecked the unanonymous access checkbox. After this I get the HTTP 401.2 unauthorized: Logon. Searched google and found some solutions relating to excluding the localhost from the exceptions list in proxy, adding the webserver program in the windows firewall list. These two solutions didn't work. Solution is that atleast one type of authentication method should have been used :
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q253667&sd=tech
Then I used the checkbox "Integrated Windows Authentication". Issue got resolved. Probably a good documentation for IIS was missing or I didn't search properly...