KB974127

Consider the following scenario:

  • You open or create a file by calling a function and setting the FILE_FLAG_DELETE_ON_CLOSE flag on a computer that is running Windows Server 2003, Windows Vista, or Windows Server 2003.
  • You create a file mapping object for the file and then create a mapped view object for the file mapping object.
  • You close the file before the mapped view is unmapped.
  • You try to lock the volume that stores the file by calling the DeviceIoControl function together with a FSCTL_LOCK_VOLUME control code.

In this scenario, the DeviceIoControl function fails and an ERROR_ACCESS_DENIED error is returned.

This problem affects applications that use the DeviceIoControl function to lock a volume. For example, some backup applications may crash or raise exceptions unexpectedly.

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