“Cannot create file” Error in TWAINPro for .NET When Calling SaveSettings()

Issue

When calling the TWAINPro for .NET SaveSettings() function and attempting to save a configuration data as "mySettings.ini", the following error occurs:

Cannot create file

This happens regardless of which directory you use for saving the file. What is causing this issue and how to fix it?

Cause

The issue lies with the file extension, ".ini". It appears that the ".ini " extension triggers an unintended behavior (perhaps in the OS) and is causing the app to treat the file location as a registry or system configuration file rather than a file path. 

Fix

Rename the file and change the extension to something else (such as ".ini ").