Visual C++ :: How To Start Process Without Loading Global Hook

I had created a global hook by SetWindowsHookEx with WH_CALLWNDPROC. It is used to create a new toolbar button in specific window in the specific (3rd party) program (named HOOKEE.exe for example), and it works perfectly fine most of the time. Normally HOOKEE.exe is launched by double clicking the shortcut icon on desktop. But this program could be also launched in another way (provided by the provider of HOOKEE.exe), with this new way, HOOKEE.exe is by conhost.exe (on Windows 7), and then I could see (via ProcessMonitor) my hook is loaded by conhost.exe, but not the process HOOKEE.exe. In my understanding global hook would be loaded by whatever process, I have no idea on the exception, and what conhost.exe does to the HOOKEE.exe.