These downloads are likely to be linked to spyware, adware, toolbars etc. so I would avoid these programs. I think that the concept is to only provide the requested download after the client installed something else. It's called "content locking". Bad for your Karma IMO.is there any cap on dowloading size and please tell me what type of downloads we can get (music videos,shareware)
Edit: but if you are creative, it doesn't have to be bad for the consumer. For example, you could advertise a dating site and not link to the site unless the user opted to download your dating guide or go there by default if they refuse your offer.