Quick Question...?

Say I make a hack for Crossfire and it's all running well but I soon find out it's not working for let's say Windows Xp..

Is there anyway possible I could make it compatible with Xp?

I'm new to C++ so sorry if this is a stupid question. No flaming or trolling please.

Ik the hack your talkin about... You have to code diffrently so its xo compatible. And really u dont code hacks.

this:

Come on everybody!
Clap your hands!
All you looking good!

I'm goona sing my song
It won't take long!
We're gonna do the twist
and it goes like this:

Come on let's twist again,
like we did last summer!
Yeaaah, let's twist again,
like we did last year!