ini file or a guide on how to using it?
: It implements the "Oskit" and "PE" (Portable Executable) loading standards, which allows it to start NT-based kernels just like the original Windows loaders would. FreeLdr vs. NTLDR: Why It Matters freeldr
In recent years, ReactOS developers have done significant work to modernize FreeLoader for UEFI systems. In the old BIOS days, bootloaders ran in 16-bit real mode and had to switch the CPU to 32-bit (or 64-bit) protected mode. UEFI changes this game entirely, running in protected mode from the start. FreeLoader has been updated to handle these modern standards, ensuring ReactOS can boot on contemporary hardware. ini file or a guide on how to using it