UPDATE: - I can't find any Local Policy Editor for Vista Home Premium, as suggested. - I did learn about registry keys: allocatecdroms, allocatefloppies, allocatedasd and tried adding these keys (individually and collectively) and setting them to both 0 or 1. There was no positive affect on read access to the DVD root folder - always Access Denied.

ORIGINAL POST: Failing read access to the root folder of a DVD drive in Vista Home Premium laptop using the Guest account - Access Denied. The client is an XP Home PC that can see, but not access, the data in the share.

I'm only trying to read the data DVD - not trying to write/burn anything.

On the Vista laptop, I have:

• All Firewalls and Antivirus disabled.UAC disabled.
• Password checking disabled.
• "Advanced Shared" the DVD drive, with "Everyone" having full-access permissions to the share.
• Tried adding Guest and Anonymous users having full-access permissions to the share.
• RestrictAnonymous=0 set in the registry.
• Both PC's are in the same workgroup (MSHOME)

The XP Home client sees the shared DVD in \Vista_Hostname\ but when I double click the drive icon on the client, I get a popup that access is denied, check with the administrator, etc.

I can share other folders on the Vista PC and see and READ these from the XP Home client.

If I enable password checking on the Vista side, I get a user/password popup, and I can authenticate (using my known Vista account, that happens to have Admin rights) and then I can get to see and read the DVD data.

I need to open this up so that the (default) Guest user can see and access the DVD data files.