Where is can set an aspnet unix-like cwd analog for whole application?

[Burganovsy]

Hi!
I'm new in aspnet, and i' already tired to write MapPath("") for every
System.IO operation, where (in config maybe) i can set once, that cwd =
server root path, not winnt\system32\?

I mean f.e. this:
File.OpenRead ("logo.gif") <- this file is in application server root
directory i.e. c:\inetpub\wwwroot\aspnetproject\logo.gif

Thanks a lot!