Java Webstart is the preferred method of launching a GECAMed client. It is very flexible as it downloads and updates all the clients on different workstations automatically after a new GECAMed version has been deploied.
However, there are also a few drawbacks, the biggest of them being that Java Webstart requires a valid Code Signing Certificate delivered with the GECAMed application in order to be able to launch the GECAMed clients. As a consequence, you need to install a recent GECAMed version when the certificate for your current version is about to expire, which happens roughly every 2 years.
If you haven't upgraded in time and GECAMed won't start for that reason, there is a workaround that avoids Java Webstart entirely. The idea is to install the GECAMed client software manually on every client computer. Naturally, the advantages of Java Webstart such as automatic client upgrades are lost.
To do so, proceed as follows:
A desktop shortcut for quick launch will also be created.