As Khubaib said, make sure you have IIS installed. And it needs to be Win2k Pro or server, or xp pro or server. If you're sure you have IIS, then the defaults of 'Default Web Server' and/or 'localhost' may be wrong for some reason. Run this code to determine your web site name:

IISOBJ = getObject("IIS://LocalHost/W3SVC")
For each Object in IISOBJ
if (Object.Class = "IIsWebServer") then
? "WWW Site: " +Object.Name + " - " + Object.ServerComment
endif
endfor