I\'m working on windows application. In this I designed Report module. I get error whenever I wanted to view report in Windows 7, Windows XP & Windows Vista, but it work
You haven't correctly installed the required Crystal Reports Assembly, you have to install the Runtime of Crystal Reports on each client machine not the version for VS, it won't work just by copying the assmblies along with your application.
You can get the correct installers from SAP directly, maybe you will be required to create a free account.32Bit 64Bit
Regards,