Yes.
The Xeon with EM64T and Pentium 4 with EM64T processors
Windows XP runs on any x86-compatible processor starting with the Intel Pentium.
Either Windows XP or Vista can be installed on a Mac that uses an Intel processor - which is all of the recent ones.
Windows XP 64-Bit Edition
Windows XP 64-bit Edition.
Windows XP Professional x64 Edition
Windows XP 64-Bit Edition.
Yes.
Yes.
Yes.
can you use 9 with windows XP?
It's actually opposite support. Windows Xp Pro sp2 will work just fine with Intel core 2 quad.