Got the solution on another forum. In the open action (Properties of the ini files) there was an " at the end of the command. Took away the " and...
I cannot open ini file with right click on mouse and selecting the notepad program. I have correctly associated ini files to open with notepad....
When I double click a .ini file in windows explorer, notepad opens with the following message: "The filename, directory name, or volume label...
Separate names with a comma.