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We have a Windows server, with Mac OS X 10.5 and 10.6 clients. On the server are some Automator workflows with custom icons stored in external resoruce fork files, like this:


The custom icons are only visible to the 10.5 clients.

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As of 10.6, the Mac OS X CIFS/SMB client uses NTFS alternate data streams to store the resource fork instead of dot underscore AppleDouble files.

To turn NTFS Streams off in 10.6 create the file /etc/nsmb.conf if doesn’t already exist, and add the following lines:


Or to turn it on in 10.5:


After changing this file, you will need to disconnect and reconnect your CIFS/SMB volumes.

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With SMB, do 10.6 and later versions of the OS default to using NTFS ADS for extended attributes? – Graham Perrin May 12 '12 at 10:11

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