I do not know if users Windows 7 would like to make a Taskbar a Start Menu never transparent than allow theme Aero graphics (Windows Aero 7 Themes), But certainly there are many people who use Windows XP and want to bring something in style Windows 7 si Windows Vista on this system.
Application Taskbar Transizer helps us Taskbar and Start Menu transparent with just a few clicks without having to install any theme or a program to the resources we consume CPU / RAM.
1. Download the Taskbar and run the file Transizer pxtaskbartrans.exe
The result: Windows XP translucent Taskbar & Start Menu.
The result: Windows 7 Transparent Taskbar & Start Menu.
After you set the level of transparency can close the application. Changes remain active until reboot (restart). If you want to keep the settings, go to the tab "Configuration"The application and tick the option "Load at startup".