You can get it from Sourceforge http://sourceforge.net/project/showfiles.php?group_id=86198
NotesAntiSpam supports Windows 9x/NT/2000/XP with the Lotus-Notes Client 5.0.8+ or 6.x. Currently there seem to be problems with Notes 6-Servers. If you want to get it supported please contact me.
Right-click onto the PacMan-Icon.
Now you can watch the process. A "+" means a new mail is processed and a "." means the mail is already scanned.
Mails which went through gateways known to the DNS-Blacklists configured are moved into the Folder "-Spam".
If you have still trouble activate the Debug.
Right-Click on the PacMan-Icon to open the Main-Window.
Select Configuration->General and select Debug.
The Debug is written to the file NotesAntiSpam.LOG in the users TEMP-Directory.