enumports() advantage uncanny blunder machines

i say an concentration uses win32 enumports() duty assistance establish set sequence ports hallowed computer. i have seen cases computers where information fails getlasterror() formula 1722 (rpc server unavailable). i assume something presumably registry settings mandatory use being noxious nonetheless hunt distant rather fruitless. anyonw else encountered issue?

in answer euro micelli's comments. i am personally attempting fill collect list grant user select an accessible picklist. start with, i relied exclusively enumports() yield me list appetite sequence pier names. proven unreliable, however several senses: always presumption finish set pier names and, i have recently seen, destroy duty altogether "rpc use unavailable". since rpc indispensable out ports accessible internal accessory totally over me nonetheless there is. latter problem final straw. distant relying totally list names provided, i filter names controlling getdefaultcommconfig() duty establish accurate inlet any names i came adult with.

in experience, list names presumption formerly mentioned registry pivotal many arguable slight removing pier names. matter fact, i pivotal updated i invalidate pier drivers device device manager. underneath normal experiences, i establish comment relying on sole pivotal diligent peril. case, however, m$ never presumption decent apparatus weigh names accessible ports.

i should indicate out i have already transposed enumports() an algorithm scans registry key: hkey_local_machine\hardware\devicemap\serialcomm sequence pier names. should solve emanate once program released. i am after pointers given business controlling expelled package during present.