It seems like a problem of the past, but you can still run into specifically compiled 32 and 64bit dlls1. This results in an issue if you still want (or need) to support the 32bit NAV Windows Client. Or at least I thought it would result in a problem but as Arend-Jan Kauffmann (highly recommended blog author and MVP) quickly pointed out, it actually isn’t: You just put both dlls in your Add-Ins folder and allow the Client to pick the right one!
Posted inDynamics NAV & BC Tips & tricks