Ralf created a great number of extensions for WB, for example, kitDirList (allows to protect download folders), dbWatchSite (protects against hacking by checking files for changes), and KeepInTouch (CRM). In the last two years, he focused on kitFramework, which is compatible with WB, as a basis for a number of professional modules. He also founded the User Group Berlin, which was the largest WB usergroup known, until it moved its focus somewhat away from 'only' WB. He also participated in the WB-Fork LEPTON. He was the most professional modules author I've ever met and a dear friend.