You could try going to Start>Run
That will take you to the Country command syntax page with some instructions on how to use it. I've never tried working with that command myself and can't be sure it will solve your problem.
%systemroot%\hh.exe mk:@MSITStore: %systemroot%\help\ms-its:ntcmds.chm::/country.htm
It does state this:
"The country command configures the MS-DOS subsystem to recognize the character set and punctuation conventions observed when using one of the supported languages. Use the %systemroot%\System32\Config.nt file, or the equivalent startup file specified in a program's program information file (PIF), to load the Country/Region setting."
If that doesn't work out, you may be able to search the registry for that special character and replace it with something else, which in effect would change the character in each path that uses it.