PSPad
PSPad editor is a freeware text editor and source editor intended for use by programmers. First released in 2001, this software is produced by the single Czech developer Jan Fiala for the Windows platform.
PSPad has many software development-oriented features, such as syntax highlighting and hex editing, and is designed as a universal GUI for editing many languages including PHP, Perl, HTML, and Java. It integrates the use of many project formats for handling and saving multiple files. PSPad also edits UTF-8 encoded texts. Other features include autocompletion, tabs, FTP client and find/replace using regular expressions.
PSPad interface is based on the MDI with tabs for editing multiple files and better open document manipulation.
The software is packaged ready-to-run, so that no installer needs to be run, and it is semi-portable.
Read more about PSPad: Reviews