Frhed - free hex editor is an open-source binary file editor for Windows 95/98/Nt4.
frhed was programmed in C++ (does not use MFC, only the Win32 API). The download archive contains a project workspace for Microsoft Visual C++ 6.0.
Features include cut&paste (for binary and text data), find and replace (binary and/or text), bookmarking, file comparison, customizable colors and font (ANSI or OEM display), partially opening large files, disk access, cryptographic functions and more.
frhed is distributed under GNU General Public License (GPL)