I had to do something similar fairly recently.
Here is what you can try:
1. Access listviewdefs.php in the <sugar root>/modules/Notes/metadata folder
2. Change the customCode line under the FILENAME section to something like this:
Code:
'customCode'=> '<a href="file:///{$FILENAME}" target="_blank" class="listViewTdLinkS1">{$NAME}</a>' 3. Save your changes and access the ListView for Notes.
That change should allow you to launch files or folders that you've entered within the Attachment field when entering a Note.
If you want to reference a folder, you'll need to type in the path without using the browse button.
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