One of my colleagues "recently" converted a win exe tool I use from Visual Studio to be a OneClick install application. This is great since I get the latest version whenever I run the exe. However, when you add an external tool to Visual Studio you only get the choice of a very limited number of extensions. The problem is that OneClick applications are installed using an application link rather than an exe, that’s hidden away from view. To solve this problem I simply created a batch/command file that launches the link, and then added the batch file as the external tool, job done.