Hi Randy.

>Just another clue that I found. I installed Visual Studio on the test machine and the treeview started working, so it's something that I'm not installing or getting registered properly. Still looking for it.

The control (MSCOMCTL.OCX for TreeView V6 or COMCTL32.OCX for V5) needs to be in the Windows System directory (\WINNT\SYSTEM32 for Win2K), it needs to be registered (use REGSVR32.EXE to do that), and the license key needs to be installed (see FOX.REG in the SDT\UTILITIES directory to install the license keys for the V5 controls).

Doug