Changes
→Lightning 1.0 Beta 2 for Thunderbird 3.1
</source>
The XPI file must reside on a local disk or on a network share (drive letter), it can't be installed from a UNC pathwith xcopy.
If you are using Windows 7/2008 and want to install from a UNC path, [http://en.wikipedia.org/wiki/Robocopy robocopy] is your tool of choiche:
<source lang="xml">
<install cmd='cmd /c robocopy "%SOFTWARE%\thunderbird\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}" "%PROGRAMFILES%\Mozilla Thunderbird\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}" *.* /e'>
<exit code="0" />
<exit code="1" />
<exit code="2" />
<exit code="3" />
</install>
<upgrade cmd='cmd /c robocopy "%SOFTWARE%\thunderbird\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}" "%PROGRAMFILES%\Mozilla Thunderbird\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}" *.* /e'>
<exit code="0" />
<exit code="1" />
<exit code="2" />
<exit code="3" />
</upgrade>
<remove cmd='cmd /c rmdir /s /q "%PROGRAMFILES%\Mozilla Thunderbird\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}"' />
</source>
===Lightning 1.0 Beta 1 for Thunderbird 3.0===