| You did miss something basic.
PATCH
/NEW_VERSION
/NEW_VERSION (default)
/NONEW_VERSION
Controls whether a new version of the patched file is created or the
contents of the existing file are modified in place. The
/NEW_VERSION qualifier is used in conjunction with the /ABSOLUTE
qualifier to control whether a new version of the patched file is
created or the contents of the existing file are modified in place.
/NEW_VERSION is the default. If /NONEW_VERSION is selected, the
PATCH command UPDATE will act as a checkpoint operation, that is,
all modifications made to the file are written back to the file
instead of waiting until image exit. If /ABSOLUTE is not specified
with /NONEW_VERSION, /NONEW_VERSION is ignored, that is, a new
version of the file will be created. /NONEW_VERSION will need to be
used when patching large data files when there is not enough disk
space to create a new version of the patched file.
NOTE
If /NEW_VERSION is specified, the file will be
overwritten. No attempt on the part of the user,
including pressing <CTRL/Y>, will prevent this
result. Therefore, you should have a back up copy
of the file before making any attempt to patch it.
PATCH will always issue an informational message at image exit,
indicating that the file is being overwritten.
-mike z
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