As others have noted, an .exe file is simply a Windows executable - a program, not a data file. Windows running under Parallels, VMWare Fusion etc. should be able to run it, unless it requires a particular version of Windows that you don't happen to be running.
Jane - it's a trusted source, so you really don't have much to lose by trying it on your old Dell. What version of Windows is it running? Since the compiler runs on anything from Windows 98 on up, I suspect that the resulting .exe will work as well.
As it says on the purchase page:
QUOTE
The complete set of three courses is packaged as a single, stand-alone Windows program that will run in a browser-like interface on your computer. No other software or e-book reader is required. To read about the courses and see outlines of each, click here.
Please note that at this time the courses do not run on a Mac (except under Windows emulation).
Jim, she (the book creator) didn't ask someone to create a program for her - it's a program that anyone can download in demo mode from a multitude of download sites. It's been abandoned by the developer (intetics.com) from all appearances - hence the demo-only mode now available, though several sites still list a price, but the link to buy it is now broken.
As noted in the description of the fast-ebook-compiler program:
QUOTE
Fast EBook Compiler is a publishing tool used to Create single compressed .exe file from a group of html files. It considers a given folder as a project and wraps all files up including subfolders into one package. Generated e-book doesn't require any installation and uses Internet Explorer installed on the user's PC to show its pages. Most of the features supported in the Internet Explorer are supported by e-books as well, except of those that require to be executed on the server side. You may use all the power of HTML, Flash, JavaScript, etc with no problems.
All this aside - I do find this a most peculiar way to package an e-book, and given that the developer has apparently abandoned the application, I suspect that it wasn't too popular either!
It doesn't require anything fancy from the looks of it, however - it's basically just packaging HTML files. So, it should work on the Dell, assuming it's running at least Windows 98.