Greenstreet Publisher is an application that has compatibility problems with Windows 7. Being old, it doesn't have any compatible patches that can enhance it to make it work in Windows 7, however, there is a way to solve this. You can install VirtualBox then you can set up a virtual machine and install Windows XP. Once you have installed Windows XP, make sure to install the additional VirtualBOX add-ons from Tools > Install VirtualBox Add-ons and then install your application. You'll be running Windows XP virtualized, but at least the application will work normally.