We have an application that makes a backup of a configuration file by copying it to a sub-folder (see log file entry below) using the following command:-
BOOL b = MoveFileEx(ExistingFileSpec, NewFileSpec, MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH | MOVEFILE_COPY_ALLOWED);
This appears to work as expected on most systems but on two we get the following warning in our log file:-
11 Jun 2018 10:58:05.437 W. COMMON WARNING MoveFile failed on C:\Program Files\Configuration\Stores.xml to C:\Program Files\Configuration\Backup\Stores.xml LastError=183
Lasterror =183 means "ERROR_ALREADY_EXISTS"
This is odd since MOVEFILE_REPLACE_EXISTING is specifically meant to enable this command to work when the target file exists.
This is happening on Win7 x86 machines.
In a previous version of the code MoveFile was used but with a DeleteFile call immediately prior to ensure the target file did not exist. When the code was rolled back to this version it works.
Any suggestions?