Int 62 Fn 00D2  u - Fgdriver V4.02 - "fg_vbfree" - Release Virtual Buffer  [V]

   AX = 00D2h
   BX = virtual buffer handle

Notes: the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145)
   this function should be used only for buffers created with FG_VBALLOC

See Also: AX=00CDh,AX=00D4h,AX=00D5h