How to tell if Crysal Reports is already installed?

Post Author: buzzluck68

CA Forum: Crystal Reports

I am working on an installation package for my application, and i need to get it to check if a copatible version of Crystal Reports is already installed. I don't know if there is anyway to do this. Please help. I know you can check if certain files exist (and what versions those files are), but i don't know what files i need to check are.

Thanks.