You can get a list of the installed applications, and their versions from a simple and easy to use command line tool. Follow these easy steps to see what is installed without installing a third party program (although there are some GREAT third party programs out there that do an excellent job!).
1. Open a command prompt (either Start > Accessories > Run or Windows Key & R).
2. Type WMIC and hit enter. You will now be in the WMIC tool, with a prompt that says wmic:rootcli>
3. Type product get name,version and hit enter. Alternatively, you can get a txt or html file by using /output:c:listapps.txt product get name,version
or /output:c:AppList.htm product get name,version
, respectively.
4. You will end up with a display similar to this: