DosCopy is used to copy files and subdirectories. Metacharacters (global file name characters) are not allowed, so only individual files or entire subdirectories can be copied with this function. The source and target can be on different drives.

When the source specified is a subdirectory and an I/O error occurs, the file being copied from the source directory to the target directory at the time of the error will be deleted from the target directory and DosCopy will be terminated.

When a file is being copied and an I/O error occurs,

• if the source file name is that of a file to be replaced, the file is deleted from the target path.

• if the source file name is that of a file to be appended, the target file is resized to its original size.

DosCopy will copy the attributes of the source file, such as date of creation, and time of creation to the target file. Additionally, DosCopy will copy the extended attributes of the source file when creating a new subdirectory or a new file, or when replacing an existing file.