As usual the sponsors arent checking their popups - and this one is a perfect example -
http://www.siteadvisor.com/sites/wegcash.com/summary/
If you read the users comments - the surfers that posted got 13 popups - so Weg says they will reduce the number of popups - good for them - however that does not address the issue that they were redflagged for - which is very apparent on that siteadvisor page -
they are downloading programs and making changes to surfers computers
As I stated before this is probably not Weg initiating the trojans and changes - its probably one of their advertisers in the popup chain - but if you dont monitor your popups this is the type of trouble you can get into - I had exactly the same thing happen with Plat Bucks about two years ago - as soon as I contacted them (Ellisa at the time) - they monitored their popups with a clean machine and found the offending advertiser and removed them immediately

added/ I will perform a little public service and figure out which popup advertsier it is for Weg this time - but its not right that affiliated have to do this for them