Locking RAM
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lock_ram,off:dword,siz:dword
  - locks RAM
  - under a DPMI server this will lock RAM using DPMI func #600h
  - under RAW, XMS or a VCPI server this will simply return successful

unlock_ram,off:dword,siz:dword
  - unlocks RAM

lock_all,useonly:byte
  - attempts to lock ALL memory
  - under Win95 this is VERY long and can take serveral minutes and sometimes
    crashes system
  - I suggest you only lock RAM using lock_ram() and only do about 1 to 2
    megs at most (just lock video buffers and such for speed)