yes my anti virus picked up and stopped something in TS a long time ago -years. Cant remember any details , but when you said 2005 hmm. ANYWAYS, to this day because of watever antivirus detected when I launch TS I get "could not find /load keypress.dll " and press ok -TS workes just fine just fine tho.
Maybe this is same thing your got. Same "old" antivirus you had been using?