Használhatsz, de ahogy ők is írják:
On workstation operating systems (XP/Vista/Windows 7) and on the Small Business Server Editions there are no TS-CALs that can be bought.
Of course our software enables multiple concurrent Remote Desktop connections on these operating systems also and the question you're probably interested in is "Is it legal ?"
However, neither Thinstuff nor Microsoft are in any position to say if a software product is legal or not.
That decision can only be made by the judicature of the individual countries.However we've many customers even in public authorities or from well-known companies (Hewlett Packard, Sixt, BMW...) who are using Thinstuff after the have checked the legal situation.
And - you know that it is always the purchaser's respectively the end user's responsibility to comply with their Windows end-user license agreement and we do not give legal advises.