Last Friday (1-10-2010) was the release of Windows Live Essentials 2011. Live Essentials 2011 is a software package that consists of Messenger, Photo Gallery, Movie Maker, Mail, Writer, Family Safe, Windows Live Mesh, Messenger Companion, Bing toolbar, Outlook Connector and Silverlight.
For me, I’m just picked to install Windows Live Messenger 2011. After finished the installation, when the program run first time, it show me an error:
The program can’t start because wldlog.dll is missing from your computer. Try reinstalling the program to fix problem.
I just clicked “OK” to close the message box and try to run Windows Live Messenger. The Messenger program can start without any problem but cannot sign in to the network. Every time it shows up an error dialog with error code 80040154, the solution for this error is to reregister msxml3.dll or reinstall msxml3. This does not solve the problem at all.
After few tries, I found that the solution to make Windows Live Messenger 2011 work is copy wldcore.dll and wldlog.dll from C:\Program Files\Windows Live\Shared to C:\Program Files\Windows Live\Contacts.
I had tried clean install on Windows 7 in another PC without any problem (this windows never installed any Live Messenger before). I think the error occurred because I never uninstall the previous version of Live Messenger and direct installed a new one.