Cal License Registry Key | Rds

management handle three main functions: defining the licensing mode, identifying the license server, and managing the 120-day grace period. 1. Licensing Mode and Server Configuration

The most common interaction with an RDS CAL license registry key happens on the client side. When a device connects to a Remote Desktop Session Host (RDSH) for the first time, it receives a license. .

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While registry editing is useful for troubleshooting, the correct way to add licenses is through the tool. Open the Remote Desktop Licensing Manager . rds cal license registry key

The grace period is a 120-day window during which an RDS host accepts connections without a valid license server. The registry holds a binary value named GracePeriod (or sometimes MSLicensing in older builds). Deleting or modifying this key can reset the grace period, but this is in production except as a last resort.

key can reset the timer. This requires taking ownership of the key and granting "Full Control" permissions to the Administrators group. Resolving Certificate Errors:

This registry key tells the RD Session Host whether to look for or Per Device CALs. When a device connects to a Remote Desktop

While it is best practice to configure the licensing mode via Group Policy or Deployment Properties in Server Manager, you can force the setting via the registry if tools are unresponsive.

for recovery purposes. Modification of these keys should always be followed by a restart of the Remote Desktop Licensing service via services.msc to apply changes. Microsoft Community Hub taking ownership of a registry key to perform these resets?

HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\Licensing Core LicensingMode (Per Device) or (Per User). Specified License Servers : Lists the addresses of the servers that issue the CALs. While registry editing is useful for troubleshooting, the

Configures the server to use Per-User licensing.

: Manages the activation status and operational parameters of the licensing service. The Client-Side Cache Path

HKLM\SYSTEM\CurrentControlSet\Services\TermService\Parameters\LicenseServers SpecifiedLicenseServers Group Policy Overrides