Thank you for providing some information. But I do not understand what types of objects require read permission in order to successfully open with SYNCHRONIZE access. On Windows XP Professional SP2, using CreateFile(...,GENERIC_WRITE | SYNCHRONIZE, ...) to open an ordinary file on a local drive that has write-only permissions does not seem to be a problem. I am primarily interested in the "buggy behavior" that a user would experience if CreateFile() was used instead of NtCreateFile().
Special filenames in subdirs like con,prn,aux,nul,lpt1 et al do not work with CreateFile(), but do work as plain files with NtCreateFile().
See attached test. -- Reini Urban http://xarch.tu-graz.ac.at/home/rurban/
testcreate.cc
Description: application/clevercontent20
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