Communication Tab not showing in Active Directory Users and Computers (ADUC) Console

By default, the Communications tab is not displayed in the Active Directory Users and Computers MMC snap-in on a computer that is running a 64-bit version of Windows.

To display the Communications tab, start the Active Directory Users and Computers MMC snap-in in 32-bit mode. To do this, click Start, click Run, type dsa.msc -32, and then click OK.

 Happy Learning!!!