1. Once you have started the setup program you basically have to okay 4 steps. The first window says "Welcome to the MatchMaker Setup Wizard" and recommends that you close all other applications. Make sure you are not running MatchMaker. Click Next. The next window gives you an opportunity to change where the MatchMaker .exe file will be installed. Normally you just click Next. Then you have an opportunity to put a MatchMaker icon on your desktop by clicking the box next to "Create a desktop icon". Click Next. Click Install.

2. In Windows Vista you may encounter extra warnings for security reasons. If User Account Control is enabled (as it is by default when Vista is installed), you will be warned first at each stage of installation, "An unidentified program wants access to your computer. Do not run the program unless you know where it's from or you've used it before." Click Allow in each case.

3. Occasionally you will encounter an extra window partway through the installation which says "A file being copied is not newer than the file on your current system. It is recommended that you keep your existing file." If you have not uninstalled the previous version of MatchMaker, you must answer "No to All". Otherwise it doesn't generally matter which way you answer and you can answer "Yes".

4. You should now be able to run the program the same way you run any other program from the Start menu. Watch for the red and white mushroom on a blue background. 

* If you have chosen not to install at this time, you need to go later to the place where you downloaded MatchMakerHD21.exe. This is easiest to do using My Computer (called Computer in some versions) on the Start Menu, or Windows Explorer, found under Accessories under All Programs on the Start menu. One of these programs may already be on your desktop. If you can't find the file, you can use a general way of finding files by their name. On Windows 7 you can click the Start button (usually bottom left) and type name:MatchMakerHD21.exe When the name comes up, double click on it.

* You can install the data to a different folder from the default location for program data (the location varies with the version of Windows). However, in the latter case a file called dataloc.txt must contain the new address of the data for the program to run properly. You make a file dataloc.txt with the correct data folder address (using a text editor like Notepad), save it to a known location, then copy it over the file of that name in the application folder
(normally C:\Program Files\MatchMaker\).