I'm getting no where on this. I have a web service that's used for a
mobile app. I began developing a web app utilizing this web service
as a console to enable users more capabilities than on the mobile
application.

My login page asks for a custom user name and password hence why I'm
using forms authentication. My login page calls my web service to
ensure the user input has appropiate access to this application. AH
HA...everytime my object makes the web service call, I get a 401:
Unauthorized error. I have impersonation set to the true in both my
web app and web service web.config files. In the web service, I have
authentication set as windows and authorization as allow all users.
Setting the credentials web service proxy property on the web client
side isn't helping because I won't know the password of the current
windows identity. So my question is what must I do to get the web
client to successfully make the call to the web service????