Free directx 8.1b software for windows

a free DirectX uninstaller for Windows DirectX Buster is a DirectX uninstaller for Windows 9X, ME and W2K.
It uninstalls DirectX from version 5 up to version 8.1 without any problems.
This tool may also work properly on later DirectX versions (e.g. DirectX 9).

DirectX Eradicator - safely remove the DirectX runtime core component from Windows DirectX Eradicator is designed to safely remove the DirectX runtime core component from Windows operating systems.
It gives you the power to install and uninstall any version of DirectX as you wish.
Main features:
- Full uninstall support for DirectX 2.0 to 9.0c
- Complete removal of all DirectX files and folders
- Full Registry cleanup; CD rollback option
- WinXP Support
Enhancements:
- OS detection mechanism - enabling DXE to be run on ALL? localized versions of Windows 2000 or later; not just "English".
- DX uninstall/rollback support for Windows Server 2003.
- Automated DX rollback for Windows 98/ME

This is a conversion of Microsofts DirectX 6 C++ headers for Borland-Delphi (Version 2-4)

If you want to grab the microphone and impress all of your friends with your Karaoke skills, then AnalogX DirectX Vocal Remover is for you! The vocal remover will work on 90% of the stereo recordings available on the market...
The vocals are not completely removed in most cases, but they are low enough that you usually can barely hear them. Currently the program removes vocals much in the same way the hardware devices do - by making the assumption that vocals are usually recorded equally on both channels, while the music itself is not.
By making this assumption, you can remove whatever is the same in both channels by changing their phase relationship by 180 degrees, and then summing the two channels. The plugin REQUIRES a stereo input, if you do not give it the left and right channels, it will not process the incoming stream, but instead just pass it through There will be some big improvements to this in the future versions, as this is only the beginning...
Now, for certain styles of music you might end up removing more than the
vocals - there really is no way around this - but there are some benefits to
this as well. I use this technique all the time to rip out drum loops, and
depending on the style of music you can use this to easily rip out specific
instruments as well!
In order to use this plugin, you must have DirectX 6 or greater installed, as
well as DirectX Media. You must also have a DirectX audio-compatible music
application (like Paris, WaveLab, Cakewalk, etc) installed in order to use the
plugin. It requires a stereo (2 channel) stream to work properly, at either
16bit or 32bit.