Your mistake was that you uninstalled the Arca Noae version, before installing the full version of XWorkplace. You should have just installed over the Arca Noae version. The widget consists of RemMedia.dll, RemMedia.xqs, and RemM_EN.msg (EN may be different for different languages). You can extract them from the Arca Noae installer DVD in \CID\SERVER\ARCAPKG\ANXWP_EN.WPI. I use WPIVIEW (from HOBBES) to do things like that.