To download memoQ, open the memoQ.com website, and in the top right corner, click Downloads. The latest memoQ version will be at the top of the list. Find “memoQ 9.3” further down that list. Click the arrow to the left of the name to expand the row. Then, click the Download button under the text. In the pop-up window, find the edition you need, and click its Download link on the right.
The memoQ installer is a single executable (*.exe) file. The file size for memoQ 9.3 is about 160 MB. This file does not include the .NET Framework: it must be downloaded and installed separately. However, the .NET Framework will probably be installed on your computer.