how to run .aspx page in win xp sp2 iis

Question

i want to setting ASP.Net Server (IIS) in my Desktop for running the asp.net .aspx pages, i m currently using win xp Service Pack 2 o/s in my desktop. to install the IIS, first i insert the xp cd to CD-ROM and then i follow the following path Control Panel / Add or Remove Programs / Add/Remove Windows Components. and i successfully install the IIS in my win xp. Then for running the ast.net .aspx page i need to run the following code in Command Prompt

%windir%\Microsoft.NET\Framework\v3.5\aspnet_regiis.exe -i

when i run this line in command prompt then it show the following error:

'C:\WINDOWS\Microsoft.Net\Framework\v3.5\aspnet_regiis.exe' is not recognized as an internal or external command, operable program or batch file.

and after this i checked for the aspnet_regiis.exe in the path C:\WINDOWS\Microsoft.Net\Framework\v3.5\ but here aspnet_regiis.exe is not available in that folder. i m not able to understand it, plz tell me what should i do