Hello,
A customer of us is running an older Navision version, 5.0 SP1.
With this version all settings are saved to a ZUP file, in the APPDATA folder of the user.
Now sometimes when they close Navision (not all the time). It gives an error message:
Error: The device object parameter is either not a valid device object or is not attached to the volume specified by the file name. (650)
From that moment on the ZUP-file is gone, and all their settings are lost. And they have to re-set everything. They work around this by creating a backup of the ZUP-file but it's still annoying enough.
I know it's an old application, but I hope someone came across this and has a solution.