Strange offset in FASTIO_LOCK, IRP_MJ_LOCK_CONTROL and IRP_MJ_WRI- TE (IRP_MN_MDL) when running

Hi all,

I’m noticing a strange offset behaviour with Project 2000 when saving across
a network. Using SysInternals FileMon I’ve noticed FASTIO_LOCK and
IRP_MJ_LOCK_CONTROL requests with offsets in the range of 2Gb (even though
the empty project file I’m saving will be approximately 37Kb).

On occasion (with my own filter driver loaded) I also notice IRP_MJ_WRITE
(IRP_MN_MDL) with offset (and length!) in the 2Gb range.

If anybody out there has any clues to what causes this behaviour (and a
workaround for it) I’d greatly appreciate any hints!

TIA

/Svante


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