cppcheck requires VS 9 runtimefiles to run. Those runtimes are installed by many programs and it is probable lots of people already have them. But still there are users without those files. And for them it is non-trivial task to get cppcheck to run. So better just include runtimes for everybody.
Currently installer is build to subdirectory of the iss file which is not obvious place to find it. Also it is not good practice to build executables to source directories.
The installer file was missing a version number (was shown as 0.0.0.0) in the Windows Explorer. Set the installer file version number identical to product version number.