>Hello everyone!
>
>Given a UNC and file name, I need to be able to determine what user has the file opened? I know that in NT 4.0 you can get this information by going on to the server/workstation where the file resides in and typing NET FILE in an DOS window.
>
>Are there any combination of Windows API calls that would get the job done?
>

Yes, but you can only do this from an NT system, and only when logged in from an account with sufficient privilege (Administrator, Domain Admin and Server Operators all can; I'm not certain exactly which permission is needed off the top of my head.) Take a look at the Net family of API calls.