Download.com has a place where users can post comments. Why didn't you read the comments? Also they have spyware warnings.
http://www.download.com/BearShare/30...ml?tag=lst-0-1
Note: This download includes adware that may record your surfing habits, deliver advertisements, collect private information, or modify your system settings. Please pay close attention to the end user license agreement and installation options. For more information on adware and spyware, please visit our Spyware Center.
What program there did you download? I bet they have a warning that you overlooked.