i developed a test-webpart and everything worked well. Now i try to deploy another webpart without using GAC (several websites, including microsofts, say that the webpart dll must either be in /bin folder or in gac). Now, when i copy the .dll of the webpart into the /bin folder, it is not shown in the available webparts in MOSS 2010.

a restart of the server didnt work, adding it to the web.config also

how can the webpart be registered to sharepoint?