Text encoding on WScript arguments - vbscript

Question

I'm trying to generate mail configurations and personalized signatures through a batch file that reads a list of users, a template, and creates a personalized output. That's done and works:
#ECHO OFF
SETLOCAL ENABLEEXTENSIONS
GOTO begin
:writesignature
cscript //NoLogo replacetext.vbs "[NAME]" %1 signature.html stdout | cscript //NoLogo replacetext.vbs "[JOB]" %3 stdin stdout | cscript //NoLogo replacetext.vbs "[EMAIL]" %2 stdin signature-%4.html
GOTO :end
:begin
FOR /F "tokens=1,2,3,4 delims=;" %%A IN ('TYPE people.lst') DO CALL :writesignature "%%A" "%%B" "%%C" %%D
:end
To do the text replacing, I created replacetext.vbs, that allows me to replace a string for oter, and can be piped if stdin and stdout are indicated as the source and target files:
CONST ForReading = 1
CONST ForWritting = 2
CONST ForAppending = 8
CONST OpenAsASCII = false
CONST OpenAsUnicode = true
CONST OpenAsDefault = -2
Const OverwriteIfExist = true
Const FailIfExist = false
Const CreateIfNotExist = true
Const FailIfNotExist = false
SET objFSO = CreateObject("Scripting.FileSystemObject")
SET objFILEINPUT = Wscript.StdIn
SET objFILEOUTPUT = Wscript.StdOut
IF (Wscript.Arguments.Count < 2) OR (Wscript.Arguments.Count > 4) THEN
Wscript.Echo "Not enought arguments"
Wscript.Echo "replacetext ""<original>"" ""<replacement>"" "
Wscript.Quit(1 MOD 255)
END IF
IF Wscript.Arguments.Count > 2 THEN
IF Wscript.Arguments(2) = "stdin" THEN
' Wscript.Echo "Input: StdIn"
ELSE
' Wscript.Echo "Input: " + Wscript.Arguments(2)
SET objFILEINPUT = objFSO.OpenTextFile(Wscript.Arguments(2), ForReading, OpenAsASCII)
END IF
IF Wscript.Arguments.Count = 4 THEN
IF Wscript.Arguments(3) = "stdout" THEN
' Wscript.Echo "Output: StdOut"
ELSE
' Wscript.Echo "Output: " + Wscript.Arguments(3)
IF objFSO.FileExists(Wscript.Arguments(3)) THEN
SET objFILEOUTPUT = objFSO.OpenTextFile(Wscript.Arguments(3), ForWritting, CreateIfNotExist, OpenAsASCII)
ELSE
SET objFILEOUTPUT = objFSO.CreateTextFile(Wscript.Arguments(3), OverwriteIfExist, OpenAsASCII)
END IF
END IF
END IF
END IF
strText = objFILEINPUT.ReadAll()
strNewText = Replace(strText, Wscript.Arguments(0), Wscript.Arguments(1))
objFILEOUTPUT.Write(strNewText)
objFILEOUTPUT.Close
objFILEINPUT.Close
Wscript.Quit(0 MOD 255)
The problem is that when I put non-ASCII characters in ANSI/Windows-1250 in the people.lst (Comunicación), while it works and reads them in console, showing them (not converting them) as OEM characters (Comunicaci¾n) when I write the output files, somehow it does convert them transparently, so the output file in Windows shows Comunicaci¾n instead of Comunicación.
After much debugging, I've localized the problem in ONLY the arguments (no automatic conversion on the template file).
How can I disable said transparent conversion, or convert back the input from ANSI to OEM so the conversion works as intended?

Answer 1

The problem is that the cmd.exe works with different code page than cscript.exe/wscript.exe. I have similiar problem in Poland, where cmd.exe works with codepage 852 (I believe this is for compatibility with older MS-DOS programs) and wscript.exe works in Windows' native codepage 1250.
To solve the problem, put the following line on the beginning of the batch file:
mode con cp select=1250