Use ASP.Net Profile object model by non ASP.net application

[Guest]

I have a Windows application need to access user profiles created by an
asp.net web app. I ported <system.web><profile> and <connectionStrings> from
web.config to app.confg. When the program executes following line,
ProfileManager.ApplicationName = "/xxx";
It generates error {"The type initializer for 'System.Uri' threw an
exception."}.
I wonder if anyone has tried to use object model of Profile outside of
ASP.Net context.
Thanks