Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

On our 2008 R2 domain, I have a strange entry in the list of folder replica.

\\?\C:\Windows\SYSVOL\domain      dc1       Enabled      SYSVOL Share
C:\Windows\SYSVOL\domain          dc2       Enabled      SYSVOL Share
C:\Windows\SYSVOL\domain          dc3       Enabled      SYSVOL Share
C:\Windows\SYSVOL\domain          dc4       Enabled      SYSVOL Share

While everything seems to work fine, I'm trying to decided if the first entry is something I should worry about.

Cheers,

Stephen.

share|improve this question
add comment

2 Answers

up vote 2 down vote accepted

The \\?\ notation is primarily used to work around the MAX_PATH limit, allowing a path length of up to about 32767 chars. Some Windows API functions have a Unicode version that supports that notation, some don't. My guess is that dc1 is either a more recent OS or a higher service pack or patch level than the other DCs, and that MS rewrote either the NTFRS code or a library used by the NTFRS code to support \\?\ notation for the new version.

Clicky for info.

share|improve this answer
    
All 4 DC's are Server 2008 R2, installed from scratch so it's replicating with DFS-R rather than NTFRS. It's a pain that you can't google for \\?\ –  Stephen Woolhead Oct 21 '09 at 21:04
add comment

The "\?\" notation is valid. I'm not sure why your machine is listing it that way, but it's perfectly valid.

Explorer doesn't seem to like that notation, treating it as a UNC, apparently. CMD.EXE likes it fine, thought. Try doing a "dir \?\C:\WINDOWS" (or some other valid directory) from a CMD prompt on one of your Windows PCs and you'll see what I mean.

share|improve this answer
    
Does the SYSVOL share automatically just replicate over all domain controllers? –  Kyle Brandt Oct 21 '09 at 19:17
    
Yes. It's a domain distributed filesystem root that is added to all DC's automatically. –  Evan Anderson Oct 21 '09 at 19:26
    
Feel much more relaxed now! \\?\c:\ seems to work fine in explorer in 7/2008R2. I shall leave it as is. –  Stephen Woolhead Oct 21 '09 at 21:11
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.