I have a device operated via Excel through com ports with MSComm32. Some macro linked to buttons on Excel forms used to make this device work properly. Up to these last days when it suddenly stopped working.
After some investigations, it seems there are some security considerations applied within Excel. The Excel file used up to now does not work anymore if Excel is runs as a standard user. An error message indicates the control cannot be created when trying to enter the creation mode, for example. But, if Excel is run as Administrator, then everything works fine.
Is there an easy way to fix this? For example granting access rights to standard user for the module MSComm32 OCX?
Thanks!