Installing ConversionThingy 2
ConversionThingy 2 installs from a web-page. To install the program, you'll
need to connect to the installation website using a current version of
Microsoft's Internet Explorer.
The installation page is located at
http://www.conversionthingy.net/install.aspx
When you get to the page, you'll see something that looks like this:

If you haven't got the prerequisites installed, a click on the Install
ConversionThingy 2 link
will install those, and you'll probably end up having to come back to the
installation page to click the Install link again to get the program
installed.
If you have the prerequisites installed, a click on the install link installs
the program. A pair of messages will pop up to test your commitment to
the installation. First you'll see a File Download security warning
related to the setup.exe file:

You'll want to click the Run button.
A few moments later, you'll see this Security Warning window, prudently
letting you know the WWW is a dangerous place:

You'll want to click the Install button.
And then, finally, you'll see the installation progress message:

The application will start immediately upon installation. You'll be able to
uninstall it, if you wish, via the Add/Remove Programs option in your
Windows Control Panel.
When the program starts, it is pretty much disabled except for the "Accept
License" button. You'll have to accept the license before you can use the
program. Once you agree to the license terms (see License),
you'll have to configure a couple of options before running your first conversion.
See the Configuration page for details.