Replace unicode

I'm not sure you can; CMD is ASCII, not Unicode.
VBScript, however, has no such limitation. The following (untested) script should do what you need. The red parts are: the input file, the output file, what you're looking for, and what to replace it with, respectively.


Const input = "inFile.txt"
Const output = "outFile.txt"
Const findWhat = ";"
Const repWith = "¸"
Set regXp = New RegExp
regXp.Global = True
regXp.Pattern = findWhat
With CreateObject("Scripting.FileSystemObject")
Set fOut = .OpenTextFile(output, 2, True, -1)
'Replace this -2 with either -1 or 0, if needed.
With .OpenTextFile(input, 1, False, -2)
Do Until .AtEndOfStream
fOut.WriteLine regXp.Replace(.ReadLine, repWith)
Loop
End With
End With