Yeah, that's what I thought I'd had to do. I *did* get the script to read the file through something like this.
Problem is, that brings up a security warning (and rightfully so!). Just wondering if there was a way to supress the warning, since the file is handled locally, like some way to let the browser know that the page is a "trusted site."
var fso, f;
fso = new ActiveXObject("Scripting.FileSystemObject");
f = fso.OpenTextFile("c:\test.txt", 1);
window.returnValue = f.ReadAll();
Ah well, passing the filename to the underlying program for processing isn't such a big deal. Pain in the butt, but not a big problem.