How do I detect unauthorized monitoring of a personal workstation?

I have a client that uses her computer for business and personal matters.  Over the last month she has noticed that the IE history files indicate sites she has never been to, like hacker sites, spyware sites etc...  She may be just acting paranoid, however she would like me to install some kind of monitoring software that would provide information regarding whether the systems was being used, what files were being accessed and if her email was compromised.  More importantly, she would like to determine if perhaps the same kind of monitoring software were already installed and whether her activities were already being monitored.  This client owns a sucessful business and is currently going through a nasty divorce.  
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Visit this webisite: and download the completely free family keylogger. Unzip this download and install it on your clients computer system. The software will run you through the options to set such as stealth mode, what to monitor etc. Try it -great software. you can even have the results emailed to any email address!

Hope this helps

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Also, if she doesn't have one already...a software firewall such as Zone alarm.
Does this work? If you'd prefer another keylogger - go to google click link to search for other useful keylogger tools - anything else, im happy to help.
Hope this helps./
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