Thank you for posting your question.
Some open source products such as pdfcreator are bundled by the vendor to include installers for products such as OpenCandy, Google Toolbar, etc. While we use vendor switches in our deployment to disable such products from installing with the product you are deploying, the dormant product installer is still there flagging a few select antivirus vendors. Unfortunately, there is no way we can remove these product installers as all updates that we support are packaged by the vendor and we only use what the vendor gives us. However, you can rest assured that we use switches to disable the other installers and therefore there is no actual threat. If you do for some reason see those products being installed as well, please let us know and we will look at that.