SharePoint 2010: How to Determine what Document Libraries Are RMS Protected
Click Start-->All Programs-->Microsoft SharePoint 2010 Products, and then click SharePoint 2010 Management shell. (Run as administrator)
Run the following script on the Management shell.
Clear-Host$WebService = [Microsoft.SharePoint.Administration.SPWebService]::ContentService$WebApplications = $WebService.WebApplicationsforeach ($webapp in $webapplications) {foreach ($site in $webapp.sites) {foreach ($web in $site.allwebs) {foreach ($list in $Web.Lists) {if($list.IrmEnabled) {Write-Host "IRM Enabled Library: $($list.ParentWeb.Url)/$($list.Title)"}}}}}$web.Dispose()
If you want to log this to a file you can use the start-transcript method described here:
http://technet.microsoft.com/en-us/library/dd347721.aspx
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