Note for Windows Live Writer Plugin Writers - The Paths Are Changing...

Writer DevZone -  Changes That Affect Plug-in Developers

"In an upcoming release of Windows Live Writer, we are changing the location that Windows Live Writer’s program files are installed into as well as the location of our registry settings. These changes could have an impact upon plug-in authors, though we have done our best to maintain backward compatibility. The following describes the changes in more detail and specifically discusses the impact that this will have upon existing plug-ins.

Installation Directory

In an upcoming release of Windows Live Writer, the location where Writer’s program files are installed will change. In previous betas, Writer the files would be installed to

<program files>\Windows Live Writer\

Starting in the next release, they will be installed to

<program files>\Windows Live\Writer\

...

Registry Key Paths

In addition, the registry path where plug-ins should register themselves will also be updated from

HKEY_LOCAL_MACHINE\SOFTWARE\Windows Live Writer\PluginAssemblies
or
HKEY_CURRENT_USER\SOFTWARE\Windows Live Writer\PluginAssemblies

to

HKEY_LOCAL_MACHINE\SOFTWARE\Windows Live\Writer\PluginAssemblies
or
HKEY_CURRENT_USER\SOFTWARE\Windows Live\Writer\PluginAssemblies

..."

About time to revisit our Plugin Setup's. I needed to tweak my setups anyway so it's no real biggie from my seat...

The good news is that it looks like a new WLW version is coming in the near future?

(via Writer Zone - Upcoming Changes May Affect Plug-in Developers)