I have an application that needs to use Crystal Report Basic. I understand, I can add this as prerequisite and if it's not already installed on Target machine, it will be downloaded and installed.
I can't seem to find similar option on VS 2010 or maybe I forgot.
You can add Prequisities called Bootstrapper Manifest packs to your VS2010 using a very good tool which is Bootstrapper Manifest Generator. here is a good tutorial how to build custom prerequisities , then you add them into Microsoft SDKs\Windows\v7.0A\Bootstrapper\Packages folder (v7.0A case windows 7 or 2008)
Hope it helps
来源：https://stackoverflow.com/questions/10578105/how-to-add-custom-prerequisites-to-vs-2010-setup-projects