I have numerous web sites that I've saved over the years. I used Internet Explorer's "Save As..." option to do this. It saves the original page as an .html document, and page requirements in a linked folder with the same name as a document.

I want to convert a bunch of these (over 1000) to the single-file .mht format. This can be done through Internet Explorer or Firefox (using UnMHT extension) by loading the original .html document, then re-saving as an .mht document. It is tedious to do that for the number of files I'm talking about, obviously.

I'm wondering if anyone knows of a utility, command line or otherwise, that can accomplish this.