Web Service 405 - method not allowed

Allright, I know this is just ignorance on my part, but the boss wants to demo a proof of concept I wrote, so trying to move on his machine. It's a web service. I just installed IIS on his machine, copied my entire folder under his wwwroot directory. Now, trying to access a web service method, getting error 405 - method not allowed.

Apologies for this lame post, but he's leaving soon and I'm running out of time to get it working on his machine. Have been googling. Just not sure what permissions or whatever, don't even know what tool would be used to set it up.

If anyone can help me out, I'd really appreciate it (read as: I'll buy you a beer).

Sorry for being desperate,
MikeJust in case anyone else is an idiot like me and tries to rush deployment. Needed to run aspnet_regiis.exe. I ran it twice, once with -enable and then again with -ir, not sure which one really needed to be done.

Then, since I just copied over the folder, I needed to set up the virtual directory in IIS.

I would imagine a proper setup routine would take care of this.