I use this method all time but put everything in one big sfx and works beautifully. I try to stay away from apps that need installation although I have a few that need it and I don't mind that. I don't use reg files except for Registration Info and Tweaks. Apps I install using this method: Audio Editor Gold, CCleaner, ConvertXToDVD, DVD Region+CSS Free, Exact Audio Copy, Frostwire, jv16 PowerTools 2006, Kega Fusion (Emulator), MagicISO, MP3Gain, nLite, Openoffice, Opera, PC Wizard, Project64 (Emulator), Registry Workshop, RyanVM Integrator, Tag&Rename, WinHex, WinRAR, ZSNES (Emulator), DirectShow Filter Manager, Media Player Classic, uTorrent, XN Resource Editor, Codecs (MSFN Codec Pack) and more to come.