https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Autodesk-Vault-Client-error-illegal-pathname-or-filename-inaccessible.html
File information displays below error message when trying to view or open files from the Vault client: "Illegal pathname or filename inaccessible" Or...
inaccessibleillegalpathnamefilenamemessage