Hi,
Please review the following document which expalins the order in which LoadRunner and QTP should be installed.
http://support.openview.hp.com/selfsolve/document/KM1158833
During working with your version of VuGen use account with full administrative rights. Please disable Data Execution prevention (KM1220841), User Account Control (KM00598473) and antivirus or hooking software running on your machine as they may prevent the proper work of VuGen.
Kind regards,
