Merci beaucoup Trinity !
I did it and it worked fine. Maybe if I may be allowed to give the LL team a humble piece of advice :
please put the link of the download links for the 3.8 viewer at the top of the knowledge base page because, for my part and for any reason, the wiki link from the mail you sent me did not opened while the one to the knowledge base did...
Thanks again and hats off for this major and brillant improvement the VMM is