WebService: custom installation path

Question

Hello. I have a problem making *.msi for a web service. The trouble is that I need web service to be installed not in the default directory (c:\inetpub\wwwroot\WSNAME), but in the directory, specified by the user while installation (for example, d:\UserFiles\WSNAME). Can I do such a thing using VS.NET 2002 Web setup project? (If "Yes", than how can I do that. Adding custom dialog with an editbox didn't help me :(( ) Thank you.