I'm trying meshmolder for the first time and on my workstation i have two different accounts: A local administrator account that it is being used for installing software and administrative tasks and a regular user. If you have a similar setup, when trying to run it using the regular user probably you will see this error: Which is the solution? Go to the Documents folder of the admin account used for installing it and there will be a folder called Meshmolder2022free (in my case) . You just have to copy it (and all its contents) to your regular user Documents folder... and it will work (or at least it seems to do now) And now i'll start testing it :) I'm just leaving this here just in case there is another "lost" new user