Extended Operating System Loader is described as 'Written in C++ and licensed under GNU GPL, XOSL (eXtended Operating System Loader) is a user-friendly, window-based graphical boot manager handling large disks and over 30 different operating systems' and is a Boot Manager in the os & utilities category. There are more than 10 alternatives to Extended Operating System Loader for a variety of platforms, including Windows, Linux, Mac, BSD and Oracle Solaris apps. The best Extended Operating System Loader alternative is GNU GRUB, which is both free and Open Source. Other great apps like Extended Operating System Loader are EasyBCD, EasyUEFI, Grub Customizer and Grub2Win.