AFAIK this is only true for Windows NT 4. In Windows 2000 you can have a delegation level impersonation token. To get one of these the server account has to have the "trust for delegation" flag set in the AD.
Csaba > -----Original Message----- > From: Steve Johnson [mailto:[EMAIL PROTECTED]] > Posted At: Friday, May 17, 2002 6:45 PM > Posted To: dotnet > Conversation: Re: Copy a file while impersonating - what am I doing wrong > Subject: Re: Copy a file while impersonating - what am I doing wrong > > > I have a Windows form app. It switches identity by calling LogonUser, > then > > calls WindowsIdentity.Impersonate. While I'm impersonating, I'd like to > copy > > a file from my machine to another machine in the domain via > > system.IO.File.Copy. The impersonation works just fine, however, the > copy > > fails with "access to the path <target path> is denied" exception. > > > In short, you can't access network resources while impersonating. > > The problem is that you have no network credentials with an > impersonation token. The remote machine must have credentials to > authenticate you and this requires a primary token. > > -- > Steve Johnson > 3t Systems You can read messages from the Advanced DOTNET archive, unsubscribe from Advanced DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
