Assassin's creed and black ops 2 don't start

Mano aamer

Honorable
Nov 2, 2012
54
0
10,630
Hi guys ,
I have got windows XP professional SP3 and when i try to play Assassin's creed and black ops 2 they ask me for this msvcrt.dll . I installed dll file fixer and it did nothing . do these games recommend windows 7 or i can play them on windows XP ?