tGFXAccess *pGFXAccess = 0x0f0422d; // sample address
LPVOID ptr1 = pGFXAccess;

__asm
{
	// Save registers
	pushad

	// Restore these from after the dllobj was created
	mov eax, dwEax_setup
	mov ebx, dwEbx_setup
	mov ecx, dwEcx_setup
	mov edx, dwEdx_setup

	// Params to open the archive file for access
	push lpVar1
	push paccess
	push pfilename

	// Code to open the archive file for access
	mov ecx, ptr1
	mov edx, [ecx]
	mov eax, [edx + 0x10] // how do we calculate the place of function? LOL
	call eax

	// Store the result
	mov dwResult, eax

	// Restore registers
	popad
}