Microsoft Lync: Group Policy Templates

I’ve been migrating our Office Communications Server to Lync over the last few days. Last night I started looking at the client policies.

The intention is that we use the in-band-provisioning, which is great, and you’ll find a nice article on Elan Shudnow’s blog.

The client also ships with a group policy template (on retail disk or downloaded from volume licensing) a small number of lines need to be changed as it contains errors.

These existing entries, found under the [Strings] section.

GalUseCompactDeltaFile0="Do not use compact delta file"
GalUseCompactDeltaFile1="Use compact delta file (default)"
GalUseCompactDeltaFile2="Use compact data file, but do not issue an LDAP query to retrieve the 'Title' and 'Office' attribute from AD."

Should be replaced with the these modified entries:

GalUseCompactDeltaFileVal0="Do not use compact delta file"
GalUseCompactDeltaFileVal1="Use compact delta file (default)"
GalUseCompactDeltaFileVal2="Use compact data file, but do not issue an LDAP query to retrieve the 'Title' and 'Office' attribute from AD."

These variables are referenced in the !!PolicyGalUseCompactDeltaFile policy (line 311 by default).

In addition to these changes, I felt compelled to rename the file to Lync.adm. Otherwise it removes my existing policy template for Communicator 2007 R2, losing access to a number of important policies (such as a definable peer-to-peer port range). Not a good thing to happen in the middle of a migration.