This batch script rename filenames. The batch script needs to be placed in the same folder as the files, which it is checking.
Change the code accordingly to your needs. The example below has 4 renaming criterias. +© will be changed to A, etc.
REM Replace statements:
SET str=!str:+©=A!
SET str=!str:+ÿ=d!
SET str=!str:+ª=C!
SET str=!str:W=!
Navigate to folder in cmd.exe and run the file changeCharFilename.bat