The version is 1.0.0.0, RenEx, extend the RENAME command. RenEx is a Windows program that extends the way to rename a file. Using RenEx You should start RenEx from command prompt or from another program or batch. Command Line Options RenEx supports the following command-line options: usage: RenEx [ file [path] [/c] [/w:1|2|3|4]...