PMMVAD MiAllocateVad( IN ULONG_PTR StartingVirtualAddress, IN ULONG_PTR EndingVirtualAddress, IN LOGICAL Deletable ); Routine Description: Reserve the specified range of address space. Arguments: StartingVirtualAddress - Supplies the starting virtual address. EndingVirtualAddress - Supplies the ending virtual address. Deletable - Supplies TRUE if the VAD is to be marked as deletable, FALSE if deletions of this VAD should be disallowed. Return Value: A VAD pointer on success, NULL on failure.