win 2K TS server with XP pro printing problem

Hi

I have a Windows 2000 server running Terminal service. I have some XP
pro running outside office and use TS to connect to this server. The
printer that we use are HP 1200. I have all my xp adding this on the
registry "FilterQueueType" D_Word, ffffffff. After I add this reg,
everything is working fine until last week I do the licencing (TS
licence was expired) and updating windows. I don't know why all the
local printer not redirecting to the server anymore. WHen I check the
printer setting, I found all the TS000 port are missing. Does anyone
know how to fix this problem?

Thank you

Wesley