Thus, if your application is built on 32bits, there will be a communication problem with the 64bit version of the COM interface. To solve this, you will need to install the 32bit version of the COM. In this case, when running the novaPDF installer (nvsdk.exe or novapk.exe), you need to add an extra command line parameter: /RegisterWin32COM
When this command line parameter is added, the novaPDF installer will copy and register the 32bit version of the COM.
Is there a way to tell whether or not the 32 bit COM interface has already been registered?