If you created reports using Visual Studio 2008 and Crystal Reports 2008 Basic (the one included with Visual Studio 2008) and you want to deploy your application on a server or client machine, you'll also need to deploy the CR runtime.
Your first reaction might be to go to the Business Objects Website and download the CR 2008 runtime.
Well, that's the wrong runtime. You don't need to download CR runtime from above mention link. That one belongs to the full version of CR 2008 (version 12). The runtime you require to deploy is CR 2008 Basic One (version 10.5).
So where do you get the CR basic (10.5) runtime? It's right on your machine:
C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bootstrapper\Packages\CrystalReports10_5