[TippeX]

if his system is higher than pentium 4 (ie: actually has the 'requirements'), then the cpu stuff might be able to be faked, the code most likely will be something similar to...

xor eax,eax
cpuid

then some comparison on the ebx, ecx and edx registers for 'GenuineIntel' to verify its intel, then another code line

xor eax,eax
inc eax (could also be mov eax,1 or variants)
cpuid

and then checking the bit flags

i'd imagine though if his processor isnt intel based it wont pass the first check...