Portable Free Apps : Use it And Enjoy it

MadEdit can edit files in Text/Column/Hex modes, and supports many useful functions, e.g. SyntaxHighlightings, WordWrap, Encodings.

Features:
* MadEdit can run under Linux, FreeBSD and MS-Windows platforms.
* Edits files in Text, Column and Hex modes.
* In Hex-Mode, MadEdit can open large files which size is up to 32GB (INT_MAX*16).
* Users can change the encoding of files at runtime like Web-Browsers.
* Supports many encodings, e.g. Unicode(UTF-8, UTF-16/32 with Little or Big Endian), Big5, GBK and S-JIS etc.
* Supports Unicode CJK Ext-B.
* If users input a character that is not supported by current encoding, this character will be converted to U+XXXX. Unicode format.
* Regular Expression search & replace (by using Boost.Xpressive).
* Opens multiple files on single instance.
* Supports syntax-highlighting of many programming languages, e.g. awk, C/C++, CSS, diff/patch, D, DOS Batch Script, Flash ActionScript, HTML, Java, JavaScript, JSP, Lua, Pascal, PHP, Perl, Python, Ruby, UNIX Shell Script, x86 Assembly, XML, Fortran, TeX/LaTeX, Squirrel, C#, Visual Basic, ASP(VBScript), SQL, Verilog, VHDL.
* MadEdit can view ASCII-Art files under Win32 platform.

7-Zip works in Windows 98/ME/NT/2000/XP/Vista. There is a port of the command line version to Linux/Unix.
Features of 7-Zip:
o High compression ratio in new 7z format with LZMA compression
o Supported formats:
o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
o Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
o For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
o Strong AES-256 encryption in 7z and ZIP formats
o Self-extracting capability for 7z format
o Integration with Windows Shell
o Powerful File Manager
o Powerful command line version
o Plugin for FAR Manager
o Localizations for 69 languages

AkelPad - is an open source editor for plain text. It is designed to be a small and fast.

Features

* Single window mode (SDI), multi window mode (MDI);
* Editing of files, which size is more than 64K (generally speaking, size isn’t theoretically limited);
* Full support of Unicode strings on Unicode systems (NT/2000/XP/2003);
* Support of Unicode codepages (UTF-16 little endian, UTF-16 big endian, UTF-8);
* Support of any codepage installed in the system;
* Support of DOS/Windows, Unix and Mac newline formats;
* Preview file open;
* Correct pseudographics displaying;
* more…

Portable 7-Zip 4.64 is available, and you can update the old version now.

7-Zip is a popular file archiver, and it’s an open source software. You can use 7-Zip on any computer, including a computer in a commercial organization. 7-Zip Features:
* High compression ratio in new 7z format with LZMA compression
* Supported formats:
o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
o Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
* For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
* Strong AES-256 encryption in 7z and ZIP formats
* Self-extracting capability for 7z format
* Integration with Windows Shell
* Powerful File Manager
* Powerful command line version
* Plugin for FAR Manager
* Localizations for 69 languages

Simple Machine Protect is portable antivirus software for your Windows Operating System, build to remove certain variant of virus, worm, trojan and spyware from your computer. SMP was designed to be a simple, open source antivirus.