May i install in my external hard drive then copy this folder to pc hdd to play the game??

Ran the install hitman avsolutionand it seemed to be working fine but then;

Installing DirectX,VCRedist - Please Wait
'extrasdxwebsetup.exe' is not recognized as an internal or external command,
operable program or batch file.
'extrasvcredist_x86_2010.exe' is not recognized as an internal or ...