What are some alternatives?
When comparing OSL2000 Boot Manager and EasyUEFI, you can also consider the following products
EasyBCD - EasyBCD is NeoSmart Technologies multiple award-winning answer to tweaking Windows bootloader.
PLoP Boot Manager - The PLoP Boot Manager is a small program to boot different operating systems.
Visual BCD Editor - Visual BCD Editor - advanced GUI version of bcdedit utility. for Windows 7/8/10 and Vista
Grub2Win - Safely dual boot Windows and Linux without touching the Windows MBR.
GRUB - Multiboot boot loader
rEFIt - rEFIt is a boot menu and maintenance toolkit for EFI-based machines like the Intel Macs.