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Bulk exporting and importing WMI filters for Group Policy

Did you know you can import/export WMI filters using GPMC? However, your export is limited to one filter at a time – filter to a single .mof file. You then take the exported .mof file to a different domain and use GPMC to import each file. This is great when you only have one or two WMI filters. What about if you have 15 or 20? No worries! You can do this using the LDIFDE utility. (This is a long but detailed explanation).

First, you need to find the WMI Filter you want to export (and eventually import). GPMC writes WMI filters in the Domain partition at:


The LDAP filter you use to return all WMI filters is (objectclass=msWMI-Som). You can narrow the number of returned items if you know the name of the WMI Filter by using
(&(objectclass=msWMI-Som)(msWMI-Name=filtername)). You can lean more about LDAP search filter syntax from MSDN (http://msdn2.microsoft.com/en-us/library/aa746475.aspx). The following sample command line gives you and idea of how to export the WMI Filter[…]

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