the link contains:
Complete Package (EXE) – Standard EXE installation package which installs SAP Crystal Reports for Visual Studio into the Visual Studio 2010 IDE
Click Once – Click-Once installation package used to create self-updatin Windows-based applications which can be installed and run with minimal user interaction. For more details see here.
Merge Modules – Merge Modules installation package used to install components which are shared by multiple applications. For more details see here.
Redist Installation (32 bit) x86
Redist Installation (64 bit) x64