Bootcfg is a command on Windows NT

Windows NT

Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993. It was a powerful high-level-language-based, processor-independent, multiprocessing, multiuser operating system with features comparable to Unix. It was intended to complement...

 operating systems which acts as a wrapper

Wrapper

Wrapper generally refers to a type of packaging, such as a flat sheet made out of paper, cellophane or plastic to enclose an object.Wrapper may also refer to:* Wrapper , a woman's garment which is worn over nightwear or lingerie...

 for editing boot.ini. A similar command exists in the Recovery Console

Recovery Console

The Recovery Console is a feature of the Windows 2000, Windows XP and Windows Server 2003 operating systems. It provides the means for administrators to perform a limited range of tasks using a command line interface. Its primary function is to enable administrators to recover from situations...

 for repairing or rebuilding boot configuration files.

Though NTLDR

NTLDR

NTLDR is the boot loader for all releases of Windows NT operating system up to and including Windows XP and Windows Server 2003. NTLDR is typically run from the primary hard disk drive, but it can also run from portable storage devices such as a CD-ROM, USB flash drive, or floppy disk...

 and boot.ini are no longer used to boot Windows Vista and later versions of Windows NT, they ship with the bootcfg utility regardless. This is to handle boot.ini in the case that a multi-boot configuration with previous versions of Windows exists and needs troubleshooting from within the later operating system.

Windows Vista and later operating systems will warn users who run bootcfg that BCDEdit is the correct command to modify its booting options.