Error starting anti spam module

I am running Eset Smart Security 4.0.467.0 on home PC running Windows XP. When I start MS Outlook I get the above error, any ideas on how to solve this, please?

Would this help?
1) turn off the email client
2) open the command line window (Start->Run-> cmd.exe)
3) run the following command from the command line:
del /Q "%APPDATA%\ESET\ESET Smart Security\Antispam\*.*"
4) start the email client