Install Prerequisites via the automatic web installer:
*Close / Exit out of all running applications on your PC*
*Please allow the installer to complete uninterrupted ( ~ 5 - 10 min depending on connection)*
(You may be required to allow / approve security prompts)
Links to individual prerequisite installation files 
 MS .Net 4.0 Full
 MS VC 2010
 SAP Crystal Reports 2008 sp4  
 Optional Quickbooks QBFC