1)   Actual Window Menu 5.1
Actual Windows Menu is a suite of the most essential tools for versatile windows control: minimize them to tray, set up priority, keep always-on-top, apply transparency, etc. Once installed, the extra options are added to each window's system menu.
window menu, minimize, tray, stay always on top, roll up, unroll, system menu, transparent, translucent, transparency,

 2)   BubbleClock 1.0
BubbleClock are analog clocks and reminder with semitransparent effect (only Windows 2000/XP). Various kinds of clock skins. Synchronization your computer clock.
timezone map, time zone map, map, zone, reminder, clock, bubbleclock, semitransparent, transparent, translucent,

 3)   Actual Transparent Window 5.1
Actual Transparent Window offers new ways of working with multiple windows: it lets you easily set and vary transparency level of any window, either manually via title button or automatically depending on a window state (active/inactive/moved/etc.).
transparent, window, translucent, semi-transparent, taskbar, plugin, skin, addin, addon, winamp,

 4)   AquaticBar 1.0
Water under your Windows Taskbar!
water, aqua, aquatic, taskbar, transparent, translucent, opacity, opaque, start, tray,

 5)   SkinCalc 3.5
SkinCalc is a free calculator featuring skins and a spreadsheet interface. Skin effects include translucency and non-rectangular shapes. More than 100 skins are available from the sites listed at skincalc.com.
Calculator, skinnable calculator, skins, skin, translucent, translucency, transparent, transparency, spreadsheet, Excel,

 6)   Ambient Light 3D 1.1
Ambient Light 3D is an original artistic 3D screensaver featuring 5 different 3D figures rotating and moving across the screen in elegant dance: Cube, Pyramid, Sphere, Cylinder, Cone; configurable figure morphing; optional translucency; texture skins
3d, opengl, figure, rotating, ambient, light, color, cosmic, galaxy, Andromeda,

 7)   XNeat 2.0.0.3
Titlebar, Taskbar AND System Tray Icon Utility in the must have list. XNeat gives you full control over your Windows by extending it's features: 1) Stay On Top 2) Send To Tray 3) Taskbar Manager 3) & More Once you try it, you will love it .. !
taskbar manager, arranger, sorter, taskbar utility, minimize to tray, tray icon, always on top, stay on top, taskbar, transparent,

 8)   Euro Calculator 3.5
Euro Calculator is a calculator and currency converter with internet agent that collects daily rates. Features include a spreadsheet interface and translucent skins. Calculator and euro conversion functionality never expire (freeware).
Euro Calculator, currency converter, skins, skin, translucent, translucency, transparent, transparency, calculator, spreadsheet,

 9)   Actual Window Manager 5.1
Actual Window Manager is a suite of over 50 innovative tools, letting users change their interaction with windows in many new exciting ways: minimize windows to tray or to an icon on the desktop, apply transparency, roll up, pin on top, resize, etc.
windowmanager, minimize, tray, stayontop, desktop, taskbar, icon, close, transparent, translucent,

 10)   WorldCalc 3.5
WorldCalc is a calculator and currency converter with daily exchange rate updates provided by Cloanto, a leader in currency services. Includes a spreadsheet interface and translucent skins. The unregistered version displays an advertising banner.
Currency calculator, currency converter, skins, skin, translucent, translucency, transparent, transparency, calculator, spreadsheet,

 11)   Translucator 1.0
Plug-in extracts translucent objects (glass, smoke, fog, fur etc.) from images having complex background content with the minimum efforts. You do not need accurately draw out an object. Mark translucent area and press Apply.
translucator, masking, collage, object extraction, translucent, background eraser, magic extractor, object selection, mask, alpha channel,