English It is rare that in real-life project that we only deliver 1 SharePoint Solution using WSP in the installation package of our solution. Even in very simple case, the installation package must contain at least Release Notes, Installation Guide which is not part of WSP. In more complex case, the installation package must also contains scripts, batch file, reporting services files, windows service installation and many more. Yes, we can create custom MSI and put all of those items together in the installation package as our ancient did.