在.net 3.5解决方案中发布到webservice

I'm at my wit's end here. I'm trying to use an auto-complete extender from the asp.net ajax extensions toolkit, which is filled from a bog-standard webservice. The application is a .net 3.5 web site, hosting the webservice in a subdirectory (real, not virtual).I'm at my wit's end here. I'm trying to use an