The Vim Windows installer offers an option to create a batch file in a directory in the PATH so that batch file can be used to invoke Vim. Just use this batch file to register Vim everywhere. When a new version of Vim arrives, modify this file only (or the installer can do it). Problems: 1. * An irritating black box (command prompt) is visible when Vim is started. 2. * In some circumstances, the name of the executable may be required, and a batch file is not sufficient.