Manually end Remote Desktop Services grace period(without changing server's date)

Hello,

Is there any way to manually end the RDS grace period on a RD Session Host?  Basically I want to test the whole environment, try to issue Licenses(and look at the reports, etc.) to the users/devices connecting to the server, but, I can't since it is still on the grace period.

I thought that changing the date could also be the answer, but, I'm using a xen virtualized Windows Server 2008 R2 and I'm facing issues changing the server date, so this is not an option.

Also we are not working with a domain, this RD Lic server will issue Licenses to several domains(not part of a forest) so another server could not issue a license for the user.

Thanks for your help!