How to cancel deferred MoveFileEx operation?

I use the below command to 开发者_开发百科delete some files after reboot the machine:

MoveFileEx(PChar(File_Address), Nil, MOVEFILE_DELAY_UNTIL_REBOOT);

How can i cancel execution of this command and prevent files from deleting after reboot?

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Files you enqueue for deletion this way are placed in the registry under HKLM\System\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations. Perhaps you can delete entries from there, to prevent the files from being deleted. I couldn't find an API function for this.

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I guess you could copy the file (since it hasn't been deleted yet) and then use

MoveFileEx(copy_of_file, original_file, MOVEFILE_DELAY_UNTIL_REBOOT)

to put it back in place during the reboot.

As Ken White has pointed out, though, it would be much much better to avoid this situation in the first place.