file.OpenAsTextStream(iomode, format);

where iomode can get the following values:

Constant	Value	Description
ForReading	1	Open a file for reading only. You can't write to this file.
ForWriting	2	Open a file for writing.
ForAppending	8	Open a file and write to the end of the file.

And format can be set to three values:

Constant	Value	Description
TristateUseDefault	-2	Open the file using the system default
TristateTrue	-1	Open the file as Unicode
TristateFalse	0	Open the file in ASCII mode

Here is a code that creates a new file, opens it for writing in ASCII mode, and writes "Hello World" to it. At the end, it closes the file:

<SCRIPT LANGUAGE="JavaScript">
<!--
var TristateFalse = 0;
var ForWriting = 2;
myActiveXObject = new ActiveXObject("Scripting.FileSystemObject");
myActiveXObject.CreateTextFile("c:\\test.txt");
file = myActiveXObject.GetFile("c:\\test.txt");
text = file.OpenAsTextStream(ForWriting, TristateFalse);
text.Write("Hello World");
text.Close();
// -->
</SCRIPT>

Notice that you have to define the constants by yourself.

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