I have to dispel some of the statements made in the previous posts. The Bat file is run after V4 is installed and after every morph package is installed. The major criteria that must be followed are that all the morph packages be installed where V4 (also M4) base files are installed, may it be in the primary Poser runtime or another external runtime. Executable files in the past needed to be installed in the same runtime as your Poser.exe but that has changed with the zip files. Under Windows 10, Poser content cannot be installed in the Programs Files folder; problems and complications can occur and your content will wind up in a virtual location. It is best to create an external runtime for your content and link it to the Poser Library, this is possible with Poser 7.