These are some projects (hosted here or on another domain) I’ve developed and let go in the public space:
Tnsmagic : it is a tnsnames.ora files manager, a tool for oracle developers. If you use more than 1 tnsnames.ora file to manage your different database connections (as I do) this tool take care of them. You can put all of your file in the tnsnames.ora folder and using this app (that sleeps in the taksbar) just switch the file you want to use. It also monitor the file for update you do on the fly to your connection strings. And you can see what’s in the file directly from this app, without opening a different text editor and looking through the file explorer.
Actually the software is for windows 2000 and XP only. I plan to upgrade the software to be installed on Vista and Windows 7 in the near future. It has been made using Delphi.