First one is a web based scanner called SiteInspector that performs daily checks on your website for malicious software injections. It is offered for free for 365 days, The sample report looks like this (I tested it on my personal website): http://siteinspector.comodo.com/public/reports/2433373
The second service is personal firewall which can be also downloaded and installed for free. The user interface is more friendly and understandable than one provided by standard Windows firewall. It filters inbound and outbound network connections based on pre-loaded built in "white list". If somthing that is not on teh list is trying to open connection, it will ask you if you want to allow it, disable it, or if you are not sure - send request to Comodo. So far it looks pretty stable and has very small memory footprint.