'Share Alarm', and 'Bho Scanner'

Share Alarm

ShareAlarm detects and notifies about remote connections to shared resources and allows you to see parameters of the workstation, which tries to establish a connection with your computer. The remote workstation, user, path, OS, permissions of the accessed folder, connection time will be available via this tool. The program has firewall system that allows blocking any unwanted connection to your shared resources. The tool is designed with a user-friendly interface and is easy to use.

http://www.nsauditor.com/freeware/index.html

BHO Scanner

Some web Browser Helper Objects [BHOs] are helpful, like the Adobe Acrobat or Google Toolbar Browser Helper Objects, but there could be malicious ones among them that will harm your computer, especially those planted by viruses or Spyware. BhoScanner allows you to discover browser helper objects of your computer including parasites and trojans. BhoScanner gives you a quick look at the BHOs installed on Local or Remote PC, tells you by colored icons (green icon - safe, yellow icon - unknown, red icon - harmful) whether specific BHO is known to be safe or harmful.

http://www.nsauditor.com/freeware/index.html