A product from the house of AnvSoft, SpamArrow is an anti-spam solution that is intended to help users secure their email from malicious content. Available only as a purchasable software application, this tool can be implemented in various Windows platforms such as Windows 95, 98, 2000, 2003, NT, and XP versions. The tool claims to have a zero false positive and is capable of blocking out all spam related emails. The tool is integrated with the SpamAssassin engine and uses Bayesian filtering to identify spam or other malicious emails. It offers support for MS Outlook and Outlook Express, and it can be integrated with these mail applications by configuring toolbar buttons and a spam folder.