When I open PABX3 I get a IO error

[Belinda Frick]

When PABX3 is opened it loads the filepaths from the prf file.

Click on OK to pass the error message.
Select OPTIONS -> FILE PATHS.
Navigate to the pabx dll file to make sure that the file path
and the plugin exists.
If the file path does not exist, please check your
Windows settings. Make sure that the path is not hidden.
If the plugin is not available,
the cause could be that the file is set to hidden in
Windows. ALSO SEE: How to show hidden files under Windows
Or you need to install the plugin again. For our service
partners and dealers, the plugin is available under the
member area on our website. You need a login to download it.
Once the dll is available please select it under 'PABX DLL'
and click 'Save'.

PABX3 will now work as before.