XMS Memory (Require HELP!)

Hi!

I just managed to allocate some XMS memory, and with the handle it
returns to me, I can lock it, and get a 32-bit linear address of the
allocated memory. But then I do not manage to write into that memory!
Can anybody please tell me what I can with that 32-bit address to
write into and read from XMS?

thanx & cu

--
cu,
     EJF