Assume confronted the following situations: you want to reinstall Windows OS, but your CD/DVD-ROM is broken; or there is not a CD/DVD-ROM in your PC at all; or maybe you even don't have a Windows setup disk. So how to install Windows now? Can't you finish that without so many restrictions?
When talking about OS reinstallation, generally we would think of using CD/DVD or USB flash drive. But if our computer does not equip with a built-in CD/DVD-ROM (because they are already outmoded), and we have no pendrive (a bit difficult to make and use) or mobile HDD in hand, what then?
Advanced Installer is a very powerful advanced EXE, MSI installer (in accordance with Microsoft Windows authentication) packaging tool based on Windows Installer technique. Maybe you are more accustomed to using the NSIS (Nullsoft Scriptable Install System), but I do suggest you to give it a try. It won't let you down.
WICleanup is an application used for scanning and clearing away the unused, unwanted Windows Installer redundancy (junk) files inside system (MSI and MSP files in the "\Windows\Installer" folder), with full name "Windows Installer UnUsed Files Cleanup Tool".