No, all this tool does is modify the ROM. For flashing and dumping, you can use ROMTool. I may bundle the command line tool into a GUI-based app in the near future if that would make it easier. Basically, you'd just dump your ROM using ROMTool, run the DXEInjector tool as described, and it will create a modified ROM at the path you specify for the save file argument. Then, you can flash the resulting file using ROMTool to your system.