Case
You need to know how many days are remaining in your Microsoft RDS (Remote Desktop Services) installation where you are still making use of the grace period.
Solution
Windows command line
Execute the following command in an elevated window.
wmic /namespace:\\root\CIMV2\TerminalServices PATH Win32_TerminalServiceSetting WHERE (__CLASS !="") CALL GetGracePeriodDays
Powershell
Execute the following command in an elevated window.
(Invoke-WmiMethod -PATH (gwmi -namespace root\cimv2\terminalservices -class win32_terminalservicesetting).__PATH -name GetGracePeriodDays).daysleft