Change cinst from stdin input to use arguments. As we have to execute this process on Windows over the shell a stdin / stdout communication is not really possible without some major hacks. So you now have to supply an instructions file and the path to the certificatelist as arguments when this process is called

#ifndef PUBKEY_RELEASE_H
#define PUBKEY_RELEASE_H
static const unsigned char public_key_pem[] = "";
#endif