.SYS

.SYS file extension

This is the basic program to work with .SYS extension

Notepad++

Notepad++ Notepad++ Document

Notepad++ is a free text editor that can replace the Windows Notepad. Compared to Notepad, this program has additional features including a tabbed interface, WYSIWYG printing, customizable GUI, zoom settings, and bookmarking. Notepad++ provides support for a variety of programming languages with auto-completion, syntax highlighting, and search & replace... (more)

The program works with the following extensions: js, log, nfo, xml, css, dat, php, sys, htm, ini, html, c, m, h, sh, me, mx, rc, py, nt, vb, pl, as, cs, fx, hxx, inc, scp, bsh, inl, wtx, mak, bas, nsh, diz, for, ctp, pas, cfg, sql, tex, vbs, unk, asc, lzx, gcm, cpp, ses, nsi, jsp, f90, cxx, cmd, f95, mfp, hpp, java, conf, phtml, readme, htaccess and xevgenxml