As a developer I have to keep track of tons of RDP connections. As many others I tried different Remote Desktop managers failing to find one suitable for my needs.
Finally I found some spare time to attempt creating my own.
The requirements being: easy to use, tabbed interface, possibility to hide in the tray to save some space.
Although far from complete, sharprd proved so far to satisfy all my needs.
Not much work was really involved, since Microsoft provides the basic ActiveX, you only have to set the proper options and encapsulate it in a pretty user interface.
Wonder what? It could come up sharprd satisfies your needs as well.
Just give it a try, or study the source code as a reference about using the RDP control.
Direct download: sharprd 0.0.1.1 (937)
Further infos on the project page: sharprd