This popular docking are freeware dock and portable so the dock can carry on pen drive or portable hard disk.
popular dock 1:
RocketDock V1.3.5
Website - Screenshot - Download
Synopsis: RocketDock is a smoothly animated, alpha-blended program launcher that resembles the "dock" found in Mac OS X. It features a simple drag-and-drop interface, multi-monitor support, running application indicators, compatibility with most dock skin format, relative path support etc.
Writes settings to: Application folder
How to extract: Download the installer and install to the default folder. Copy all files (except unins000.exe and unins000.dat) to a folder of your choice. Finally, uninstall the program. Create a blank file called Settings.ini in that folder. Launch RocketDock.exe.
Path portability: Requires manual entry of drive-less absolute path (eg. \docs\personal\work.doc without the drive letter)
Unicode support: Yes
License: Freeware
System Requirements: Win2K / WinXP / Vista
Y'z Dock V0.8.3
Website - Screenshot - Download
Synopsis: Y'z Dock is a program launcher that looks like the dock in Mac OS X. To add icons, drag-and-drop a file from Explorer to the dock area. To delete icons, drag-and-drop the icon out of the dock. To remove a separator, press [Ctrl] plus drag-and-drop the separator out of the dock. Right-click on the dock gives you the context menu. Y'z Dock supports relative paths, though it does not automatically use relative paths when you add a file.
Note that this is a beta application that is no longer being developed by the author. The original language of the application is Japanese, but you are given a choice between English and Japanese when you first run the application.
Writes settings to: Application folder
How to extract: Download the ZIP package and extract to a folder of your choice. Launch the program by double-clicking on YzDock.exe.
Unicode support: No
License: Freeware
System Requirements: WinXP
RK Launcher V0.4 Beta
Website - Screenshot - Download
Synopsis: RK Launcher is a Windows taskbar replacement for those of you with Mac-envy. It gives you a "dock" that resembles the one found on OS-X, complete with interactive zooming, thumbnails for minimized window and lots of other eye-candy.
Note that if you are running this on non-WinXP systems, you will need to place GDIPLUS.DLL in the application folder.
Writes settings to: Application folder
How to extract: Download the ZIP package and extract to a folder of your choice. Launch the program by double-clicking on RKLauncher.exe.
Unicode support: Yes
License: Freeware
System Requirements: Win2K / WinXP