This worked for me. Many thanks
How do I reinstall WLDCore.dll?
i continue to receive pop up error message WLDCore.dll was not found, reinstalling the application may fix the problem.
Windows for home | Other | Email and communications
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Anonymous
2013-12-07T01:30:27+00:00 -
Anonymous
2013-11-25T23:29:48+00:00 It's worked.
Thank You very much.
I had same issue. Here is how to fix it. This is easy and works! Thanks to whoever figured it out.
After long day of research, at last I got the solution. It seems the new Windows Live has grouped the wldcore.dll and wldlog.dll (used by Messenger, Contacts and Mail) to a folder c:\Program Files\Windows Live\Shared

Maybe because I did upgrade install it screwed up things.
The solution was simply copy paste those 2 files wldcore.dll and wldlog.dll from c:\Program Files\Windows Live\Shared to
- c:\Program Files\Windows Live\Messenger
- c:\Program Files\Windows Live\Contacts
- c:\Program Files\Windows Live\Mail
Now I can login to Windows Live Messenger and enjoy the whole Windows Live Essentials 2011 products.
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Anonymous
2013-11-10T13:12:34+00:00 Thank you very much for sharing the information. I only wanted to make Live my default "mailto." After installing Windows Essential (only Mail and Writing). When asked to select a program for emailing to a link...@Live was there but the required .dll prevented default selection. Moving the files as you instructed solved the problem. Now when a link to email is selected, Microsoft Live is offered and I have all of the e.mailing options needed (automatically)
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Anonymous
2013-11-04T10:15:53+00:00 I have this same problem but I still cannot "fix" it. I see you got it to work eventually. Any advice/explanation in simple, easy to follow steps!! Soooo frustrating!!! Message I get is WLDCore.dll is missing
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Anonymous
2013-10-31T07:09:22+00:00 Perfect! Thank you. Worked for Windows 8.1.