Install Webcam DLL dependencies

YWCVWR.DLL   is used by YahSee to view webcam streams.
YVWRCTL.DLL  is not used by YahElite directly
YUPLAPP.DLL  is used by YahSho to send webcam streams.
YWCUPL.DLL   is used by YahSho to send webcam streams.
KDU_V32R.DLL is used for high quality jpeg2000 images


Web Cam Fix
Small program that Installs 4 Webcam DLL's into Yahoo! Messenger folder to fix any problems you may have with webcam not working in Yazak, You will need this if use yahoo messenger V8.1.0.401 or higher for yazak webcams to work.... but will also fix problems with lower versions you may have.

Now works if you haveYahoo! Messenger V10, V9 and V8 with Yazak (and 64 bit now)

Click Here to download fix program (only 432k) V1.4.0 Aug 30th 2009 new

Make sure you have CLOSED Yahoo! Messenger and Yazak if running

Then click the Register Web Cam DLL's Button

You will need to click RUN twice to Run it from download

Then test your web cam should fix Show and View Cams
You may need to reboot your computer for it to take effect

Source : http://www.yazakpro.com/yazak/extra/webcamfix.html