However, if you close Outlook and restart Outlook before Outlook has fully closed, then all Outlook Add-ins such as SpamCatcher will not load. For example, if you close Outlook while a compose window is still open and restart Outlook, the SpamCatcher toolbar will be missing and SpamCatcher will not operate because Outlook did not shutdown completely.

To fix, simply close Outlook completely and restart Outlook. For help on closing Outlook completely:
How do I ensure that Outlook is completely shut down (win95, win98, winME)?
How do I ensure that Outlook is completely shut down ( win2k, winNT, winXP)?

You can try the SpamCatcher Universal edition which does not have this problem but you will lose some features.