When enabling users for the first time in Microsoft Lync, we get a lot of requests for bulk enabling based on group membership or other factors. If this is something that you would like to do, you don’t need a fancy tool, you just need to check out the get-csaduser command in Powershell: http://technet.microsoft.com/en-us/library/gg398592.aspx

Here’s a sample command to get you started:

get-csaduser -LDAPFilter {(memberOf=CN=Your Group Name,OU=Your OU,DC=domain,DC=com)} | enable-csuser -registrarpool "Yourpool.domain.com" -sipaddresstype emailaddress

If you wanted to enable all Microsoft Lync users by OU try this:

Get-CsAdUser -OU "ou=Your OU Name,dc=domain,dc=com" | enable-csuser -registrarpool "Yourpool.domain.com" -sipaddresstype emailaddress