Javascript Append to Text File

I have several JavaScript files that when run return no errors, but do not do what is coded inside them. This is one of them. Is there something else I should have installed or enabled on the PC running the .JS files?

function WriteDemo()
{
var fso, f, r;
var ForReading = 1, ForWriting = 2;
fso = CreateObject("Scripting.FileSystemObject");
f = fso.OpenTextFile("c:\\testfile.txt", ForWriting, true);
f.Write("Hello world!");
f.Close();
f = fso.OpenTextFile("c:\\testfile.txt", ForReading);
r = f.ReadLine();
return®;
}

According to the [MSDN article][1] on FileSystemObject, for JavaScript you should use

new ActiveXObject

instead of

CreateObject

(that's for VB).

function WriteDemo()
{
var fso, f, r;
var ForReading = 1, ForWriting = 2;
fso = new ActiveXObject("Scripting.FileSystemObject");
f = fso.OpenTextFile("c:\\testfile.txt", ForWriting, true);
f.Write("Hello world!");
f.Close();
f = fso.OpenTextFile("c:\\testfile.txt", ForReading);
r = f.ReadLine();
return®;
}

And, of course, don't forget to call the function. :)

WriteDemo();

[1]:

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