This article is accurate as of 2026. Microsoft occasionally changes the distribution method for RSAT and Windows tools. Always verify with the official Microsoft Learn documentation.
RSAT: Active Directory Domain Services and Lightweight Directory Services Tools Install it. Once finished, you can run from the Start menu or the Run dialog ( Windows Server Server Manager
For legitimate documentation or older versions of the Windows Server SDK that included ldp.exe , always use Microsoft’s official channels: learn.microsoft.com or the Volume Licensing Service Center.
ldp.exe is a legitimate executable file developed by Microsoft Corporation. It stands for "Lightweight Directory Protocol" and is a diagnostic tool used to test and troubleshoot LDAP (Lightweight Directory Access Protocol) connectivity.
If you believe you installed RSAT but still cannot run ldp.exe , here is what to check:
On modern versions of Windows (10 and 11), LDP.exe is included in the . As of recent updates, RSAT is a built-in Feature on Demand.