I did a quick search on my system and found many instances of MSCORLIB [and MSCORLIB.DLL] in my Microsoft Windows folder on my operating system folder, but I also see where it's used with Microsoft SilverLight and .NET, and seeing as it's so prolific, and Windows
Live Writer relies on Internet Explorer for the HTML rendering, this might lead back to Internet Explorer as the cause.
Even if you don't use Internet Explorer as the default browser; it has to be updated regularly.
These are some things you should generally do anyway, but…
You should try doing a system update.
Downloading the latest version of Internet Explorer
Downloading the latest version of .NET framework 4 [or latest]
And possibly Microsoft Silverlight
Also, if Windows Live Writer starts at all, you should try to submit your Windows Live Writer log.
A standard response for Microsoft techs here is to request the Windows Live Writer log file. It may offer them more insight as to why Windows Live Writer is having issues.
Here's how to get it…
In Windows Live Writer, choose HELP, About Windows Live Writer and then clicking the "Show log file" link.
OR [if you can't get that far] grab it manually…
Start » Run
If you are using Vista or Windows 7: [Copy and paste]:
%userprofile%\AppData\Local\Windows Live Writer\Windows Live Writer.log
Until next time,
Larry Henry Jr.
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