An error has occurred while attempting to load the Crystal Reports Runtime

I try to compile my VS 2008 application on a Windows 7
machine and run Crystal reports. However, they will not run.

I get the following message:

An error has occurred while attempting to load the Crystal
Reports runtime.

Either the Crystal Reports registry key permissions are
insufficient or the Crystal Reports runtime is not installed correctly.

Please install the appropriate Crystal Reports
redistributable (CRRedist*.msi) that contains the version of the Crystal
Reports runtime (x86, x64, or Itanlum) that is required. Please go to http://www.businessobjects.com/support
for more information.