Reawakening a long-quiet thread:
After using TrayManager for several months, I have gone over to PS Tray Factory (http://www.pssoftlab.com/pstf_info.phtml
), which I feel to be a far superior product. I found TrayManager to be unreliable - icons I had hidden would pop back, or the whole thing would suddenly go belly-up for no clear reason. It seems to be a bit rickety in its coding, and it just fell over far too often for me.
By contrast, PS Tray Factory is very solid - I haven't had a crash in about a month of using it - and it is very easy to configure. See attached screenshots for example of it with my frequently-needed programs showing, and then with none showing at all except PS Tray itself (and you can also turn off that icon), and for an image of the configuration window.
In addition, it can minimize any program to the System Tray, and it works well with WindowBlinds (as you'll see from the screenshots). Overall I think it's a winner: highly recommended for anybody who, like me, has too many programs running in their system tray!