I can't find the option to set it back but it no longer automatically runs at boot time since installing an update a few days ago. From the about menu:
Your computer has a Windows Experience Index base score of 4.8
Your Windows Graphics Experience score is 4.8
WindowBlinds version : WindowBlinds 7.3 (build 306 x86 - Vista Edition) - 64 bit OS
WindowBlinds is installed correctly on this PC
WindowBlinds appears to be activated on this PC
(SyncMaster 245B/245BW/245BPlus(Digital)) 1 is attached to NVIDIA GeForce 8600 GT
Wblind.dll 2011/08/24 17:57:20
Wblind64.dll 2011/08/24 17:57:46
Wbsrv.dll 2011/08/24 17:57:56
SevenConfig.exe 2011/08/24 17:59:52
Wbload.exe 2010/09/07 17:02:35
Wbhelp.dll 2010/09/07 17:02:34
Tray.dll 2010/04/01 11:44:19
Wbload.dll 2011/08/24 17:59:25
Screen.exe 2010/05/26 11:18:43
What changed and how can I restore it without doing a system restore?