WindowGhost
WindowGhost provides cool transparent window effects when moving or resizing windows. It allows you to "see through" windows and be able to better place windows on your desktop. WindowGhost also allows transparent menu effects. Arrange your windows more efficiently with WindowGhost! ... With this desktop enhancement, windows become transparent (ghost-looking) when they are moved or resized, allowing you to partially "see through" to other windows in the background. ... Makes organizing windows more efficient and allows you to better control the window real estate on your monitor.
http://barefoot.swmirror.com/windowghost.exe - 588Kb - Download - Screenshot

TweakWindow
Even though TweakWindow has many analogs currently available for download on the Internet, no other window enhancement utility comes close to TweakWindow in terms of usability and number of features offered. In addition to standard features, like hiding a window or making it topmost or... First, you can use the buttons that the program adds to windows (this option can be turned on or off). ... Second, you can manipulate the windows through the window system menu. ... Another popular option not available in many window enhancement tools is a rollup feature that rolls the window up or down,...
http://x.AbsoluteWay.com/download/setup-tw.exe - 1Mb - Download - Screenshot

Omniquad Set Me Up
Get the most from your Win95/98/ME computer with over 80 runtime enhancements, settings and tools covering system boot, Windows graphics, sound, system maintenance, file encryption, crash protection and recovery, Internet Explorer, new Windows 95/98/ME and general security enhancement User... -Change startup tips & Windows Graphical User Interface. ... -Customized Windows splash screens with supplied templates, randomized splash screens & wallpaper. ... With Set Me Up you can edit password lists and adjust the start menu speed Benefits include: -System Monitor, FontView and Windows...
http://www.omniquad.com/setmeup.zip - 3Mb - Download - Screenshot

AlphaXP
AlphaXP is a powerful system enhancement that adds advanced transparency effects to any Windows 2000/XP computer. It has won many five-star awards for excellence and is regarded by thousands of users worldwide as the system enhancement of choice. AlphaXP sports tons of powerful features such as... AlphaXP also has a unique feature called Advanced Transparency, which is a set of special techniques that builds upon the standard Windows transparency and eliminates flicker and other glitches from both Windows 2000 and Windows XP.
http://www.zeroherosoftware.com/downloads/InstallAlphaXP.exe - 1Mb - Download - Screenshot

ZoomOpen
Make working in Windows more exciting with ZoomOpen! With this desktop enhancement, you can control how windows open and close using visual animated effects. Select a zoom effect and where you want the zooming to start - a specific area on your screen, or from the position of your mouse cursor. ... Select another effect when windows close, choose animation speeds and other parameters to fully customize your desktop! ... Liven up your workspace!
http://barefoot.swmirror.com/zoomopen.exe - 695Kb - Download - Screenshot

Better File Attributes
Better File Attributes is Windows Explorer enhancement that allows file dates to be changed at will. It can manipulate entire file hierarchies.
http://www.publicspace.net/download/BFA.zip - 586Kb - Download - Screenshot

CSFastRunII
CSFastRunII is a desktop enhancement that allows users to run applications, groups of applications or specific data files like documents, spreedsheets, development projects, etc from an easy to understand dropdown list control housed integrated into the Windows taskbar so no real estate is lost. ... Explorer add-in allows you to add applications and shortcuts easily with a right click on the file.
http://www.consiliumsoft.com/Downloads/CSFastRunII.zip - 1Mb - Download - Screenshot

Windowblinds 5
Customize the look and feel of Windows XP with WindowBlinds. It's a Windows utility that enables users to personalize nearly every aspect of the Windows graphical user interface. It can "skin" your title bars, push buttons, Start bar, radio buttons, and nearly every other part of Windows. ... s premiere suite of desktop enhancement programs that let you customize Windows to look, feel and function how you want it to. ... Use WindowBlinds to make Windows look like another operating system (Mac, Linux, etc.
http://storage.stardock.com/files/windowblinds5_public.exe - 9Mb - Download - Screenshot

XP Visual Tools
XP VISUAL TOOLS brings fresh air in Windows programming style, using dynamic effects and powerful multimedia elements for a new user interface eXPerience. It’s not just another skinable program, it’s even more. XP Visual Tools brings you completely new interface with each new skin, new... Feel free to download any Windows XP Wallpapers and Windows XP LogonUI and manage them easy with this new Windows XP Utility! ... Now you can do anything you want, from changing transparency level of XP Start Menu and XP Taskbar to easy swapping between different Windows XP LogonUI or Windows XP...
http://www.cronosoft.com/files/xpvt.zip - 2Mb - Download - Screenshot

WindowFX
WindowFX allows Win2K/XP users to add a host of special effects and enhancements to their windows. WindowFX features include: true shadows under windows, transition effects for minimizing, maximizing, closing, and opening windows. Transparency effects, the ability to have large icons on the... 12 adds effects to window moving, greater performance, and a ton of added goodies in the free version. ... Version 2.
http://storage.stardock.com/files/windowfx212_public.exe - 1Mb - Download - Screenshot