>Shall i dowload this MASM free?
masm32 is pretty good from what I hear. I only have a passing familiarity with the syntax, but my understanding is that the macros are exceptionally powerful. If you like that sort of thing. Since you have experience, that might be your best bet. But I like to recommend NASM or FASM for a fresh start.

Thanks for you kind advice, do you have a simple tutorial (PDF) for stating MASM? i am totally forgot.

Thanks,
Shahnaz

I have a PDF tutorial for NASM, but I haven't translated it into any other assemblers yet. If you google for "MASM tutorial" you'll probably find enough to refresh your memory, though.