Thanks for the suggestion to migrate to Thunderbird.
Since it is my path names that are indeed very long due to migrating the message store across many versions of Windows since 15 years, the only way that today I can create a new folder in my WLM is to create it in the DRAFT folder which will result in the
.eml files being in a windows hard folder that has a very short path name. Then I drag the reference to the newly created folder located inside DRAFT into my tree structure within my storage folder.
My virtual structure is a tree made up of many branches and sub-branches, e.t.c. pointing to 30000 emails. I would definitely need Thunderbird to import the virtual structure but I have to wonder if it will create a hard structure where the emails are distributed
in an arborescence that is faithful to the WLM virtual structure and not the WLM hard file structure.
I would also hope that Thunderbird would remove the useless extra characters in the path names, which were full of repetitions of the string « /storage folder « repeated additionally for every time I migrated the message store to a new version of Windows.