What's the encoding of the error message?

[sailormoontw]

This code: ( Note, aaa.test is not existed )

private import std.file;

void main()
{
read("aaa.test");
}

with the following error message:

F:\d\hdk>dmd test1.d
C:\Dmd\Bin\..\..\dm\bin\link.exe test1,,,user32+kernel32/noi;

F:\d\hdk>test1
Error: aaa.test: 系統?¾ä??°æ?定ç?檔æ???

I cannot read the error message at all...I think it should be English..but why
it shows wierd characters??

Thanks..^_^