Administrators may want to disable offline files and folders altogether. As administrators, they have the ability to specify which files are or are not available for offline use.
For example, administrators may want to prevent access to sensitive corporate files, such as accounting and human resources files, or financial data, such as company stocks and bonds, or merger and acquisition paperwork. Administrators can use the Computer Management console or Group Policy to restrict file access.
Administrators can make a shared folder unavailable in Computer Management using the following steps:
1) Open the Computer Management console by clicking Start. Right-click Computer and select Manage. If prompted, click Continue to display the Computer Management console.
2) In the console tree, right-click Computer Management and then select Connect to Another Computer. In the Select Computer dialog box, type in another computer to connect to or use the Browse button to select the computer to work with.
3) In the console tree, expand System Tools and then expand Shared Folders. Select Shares to display the current shared folders in the details pane.
4) Double-click the share to configure for offline use. Click the Offline Settings button on the General tab to open the Offline Settings dialog box.
5) In the Offline Settings dialog box, select the Files or Programs from the Share Will Not Be Available Offline option and then click OK to Finish.
Source: http://www.techmetica.com/howto/disable-offline-files-and-folders-availability-in-vista/#ixzz1VXEqXq5n
