Codeigniter projects on IIS and permission settings

[eluser]Unknown[/eluser]
My server admin reinstalled IIS with php 5.2 / Fastcgi

Now we are have a different error when accessing http://localhost/project1 but at least this is something more useful...

Code:

PHP Warning:  is_dir(): open_basedir restriction in effect. File(application) is not within the allowed path(s): (C:\inetpub\wwwroot) in C:\inetpub\wwwroot\project1\index.php on line 108 in

What are the permission settings needed for CI on IIS?