When implementing Folder Redirection via Group Policy, there is a checkbox on the Settings tab that says "Also apply redirection policy to Windows 2000, Windows 2000 Server, Windows XP, and Windows Server 2003 operating systems."

When I Google this checkbox, all I find are how-to articles on folder redirection in general, support articles saying one bad thing or another is happening because it is or isn't checked, or forums full of advice from people clearly have no idea what they're doing.

I know how folder redirection works. I also know how to read. What I want to know is, what does this setting actually do from a technical standpoint?

Folder Redirection - Documents Properties

We do not have any XP or Server 2003 machines in our environment, so this checkbox is irrelevant to me. But today I found a rogue group policy that is screwing up permissions on a file server, and it's because it had the "Grant the user exclusive rights..." checkbox enabled. I need to disable it, but that policy also has this option set, and I want to know how/if this will affect the terminal server it's being applied to.

  • Have you used the "?" in the top right corner to check the option? – Davidw Dec 17 '18 at 23:20
  • The question mark does nothing and the F1 help just takes you to generic help about using the MMC console generally. Not helpful. – Wes Sayeed Dec 17 '18 at 23:22
  • You have to click the question mark, then click on the option you want to see the help for, then scroll through the information to that section. – Davidw Dec 17 '18 at 23:27
  • I did. It does nothing on any element on that screen. – Wes Sayeed Dec 17 '18 at 23:29
  • Which version of Server is this? – Davidw Dec 17 '18 at 23:31

There are two versions of the Group Policy Folder Redirection protocol: Version 0 and Version 1.

There are therefore two versions of the configuration file used internally to store folder redirection settings.

Version 0 settings are stored here: Sysvol_path_of_the_gpo\User\Documents & Settings\fdeploy.ini
Version 1 settings are stored here: Sysvol_path_of_the_gpo\User\Documents & Settings\fdeploy1.ini

As the protocol has changed, the content of the files is not the same. Below is a screenshot representing the same configuration (Desktop redirection on c:\temp) once in protocol version 0 and once in version 1, respectively.

GPO Folder Redirection protocol versions

newer versions of Windows can read both version of the protocol, however, older versions (up to Windows XP) can only use version 0.

And that's why this checkbox was added: By default, the latest version of the protocol is used (V1), however, you can revert to V0 if you have older clients by enabling the checkbox you specify.

I suggest not checking this checkbox if you don't absolutely need the Folder Redirection to work on older versions of Windows (so that you use the most recent version of the configuration protocol).

Here is the technical documentation of the Folder Redirection protocol, if you want more details on this topic.
Point 2.2 of this documentation is about the Message Syntax and provides details about the protocol version.

  • 1
    That's exactly the kind of information I was looking for. Thanks!! – Wes Sayeed Jan 2 at 17:53

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