Rated 5 out of 5 stars

The add-on is really useful for our IT team. Our company used Windows Live Mail 2012 on more than 1000 PCs and this tool makes the migration of all messages from WLM to Thunderbird easy. It is great that it preserves the directory structure. It works stable and fast. For example we imported about 100 000 messages on normal hard drive for less than an hour.

I write this small off-topic hint for exporting contacts because I believe that there are more users like me who will migrate from WLM to MTB.
Export all contact in VCF files. Then use command prompt and use the command "copy *.vcf all.vcf" to combine all files in single vcf file which can be imported in TB address book with a few clicks.

This review is for a previous version of the add-on (4.0.4). 

Nikolay
Thank you for the very nice review!
Your use case is a great example of Thunderbird in the enterprise. Would you be interested in communicating with community development manager regarding enterprise use needs? Direct feedback from users like yourself is critical for moving Thunderbird forward.
Regards, Christopher