Gamemode string pushing

Code:

---

unsigned long MListBoxAdd = 0x00548460;

void AddGamemodeBox( const char* szMsg )
{
    __asm
    {
        MOV ECX, DWORD PTR DS:[ECX+0x2FC]
        JMP MListBoxAdd
    }
}

---

Can someone test that for me? :$: Visual Studio has a stick up it's ass. q.q

Edit: July 2008 files it's for.

Edit2: I looked back into it and I forgot some things.
/useless thread =\