Not all users have enough system resources to install operating systems like Windows Vista or Windows 7, but that doesn't mean they can't change How much Windows XP operating system interface, so to look like systems with Aero graphics interface.
wTrans It's a little application which will not transform the Windows XP operating system into Vista or Windows 7, but will make transparent some elements of the graphic interface.
Transparent Context Menu – The menu that appears when you click on the desktop.

Transparent Start Menu & Task Bar in Windows XP.

Wrans allows you to set for each element the intensity of transparency. Taskbar, Start Menu & Context Menu.

The application is more useful on Windows XP operating systems, but if you want an extra transparency in Windows Vista or Windows 7 (Aero), this application can help you.
Here's what transparency looks on Windows 7:

Download wTrans – wTrans.zip
Dislike and run wTrans.exe.
Application developed by solo-dev.deviantart.com.
Compatibility: Windows XP, Windows Vista & Windows 7.
Them. A set of applications that do the same thing with Wrans, find at “Taskbar, Start Menu & Context Menu transparent [XP, Vista & Windows 7]” . by Stealth.
 
			