Question : Runtime error 490 and followhyperlink

I have a form that has a function GetDirectoryFiles() and populates a listbox.  In the listbox, I see each of the files in the directory.  It's supposed to work where I can double click on a filename and it will open the file using its associated program.

Here's the problem.  When I double click on any of the jpg files that show up in the listbox, I get a runtime error 490.  It's failing at a line of code with followhyperlink.  To make things interesting, it does NOT fail with I double click on .doc files.  Anything come to mind why that would be?  The jpg files are associated with an image viewing program.  I actually changed that to use IE but it still fails.

Answer : Runtime error 490 and followhyperlink

I've had a few MSisms (problems I couldn't explain) in the past with FollowHyperlink. Have you tried using the ShellExecute API?

API: Start an app with ShellExecute

(Q)    How do I start the application which is registered to handle a file extension in Win Registry?

(A)    You'll have to use the ShellExecute API.  Pass the filename to fHandleFile function.  If the file extension is "known", or registered,   it should automatically call the parent application.  If the extension is unknown, it should bring up the Windows standard "Open With" dialog box.
http://mvps.org/access/api/api0018.htm