I have installed an application which runs on IIS 4.0. This application makes use of exe files to output html code. To do a similar work, I wrote a c program which just outputs HTML tags using printf statement. I put this exe in Inetpubwwwroot and tried to invoke it from the url. When i do so, it asks for user id and pwd. I get an error even after giving valid user id and pwd. When i cancel the operation, i get an error "Unauthorized to perform this operation". Is there any include file i have to incorporate before making the exe? <BR>Early response would be highly appreciated.<BR>Thanks & Regards<BR>Srini