Canon MP Navigator Stopped working with scanner. Worked under Vista, not Win 7.

Hi all:

I purchased the Canon Lide 110 and attached to my wife's Inspiron running Win 7. I got the  "MP Navigator EX has stopped working" as well. I followed several suggestions here to fix: 

1. Create new user w/ admin rights and it will work. (It did not). 

2. Look for "C:\Users<user name>\App Data\Roaming\Microsoft\Windows\Network Shortcuts\My Web Sites on MSN" and delete.  Well I had no such shortcut on my system.

What I founf is this. My wife is a teacher and she uses one of those big white SmartBoards at school. The company makes a product for home as well callede SMART Notebook so she can develop things for the class board while at home.  This software installs the following in the Windows\Twain32 folder:  sdc330Twain.ds and SMARTDocCamera.ds.  Already in this folder was a wiatwain.ds file. Just to experiment, I made a temp folder on my desktop and moved the 2 files that SMART had installed.  Guess what? MP Navigator works flawlessly and I tried the copying, the scanning...every choice with no problems. THEN, however, I tried to run an Office 10 app (Excel, Word, Pub) and they are tied in to SMART's files becuase a box pops up and starts reinstalling the two moved files!

Anyway, a dumb workaround that I am doing is this: I have a shortcut on the DT that does to the \Twain32 directory. I also made the ScanTemp folder on the desktop. I copied the two culprits into the ScanTemp folder and when I plan to scan with the Canon SW, I simply copy these back into the the Twain32 folder.

Dumb, yes but it works. Don't know if Canon, Microsoft or SMART Notebook makers is responsible for the incompatibility.

JMackeral

I have had the same problem with Win 7 64. I spoke to Canon Tech Support and after an hour during which we tested various things I was told the the problem was with Windows and I should contact Microsoft. I tried creating a new profile which fixed the problem for about a week, then it came back again! The issue may be associated with Windows Update but I am not sure. On this last go around I created a new profile, then copied in the folders and files from the corrupted profile one at a time to see when the problem would start again. After carefully copying files, backing up, testing Mp Navigator, and if necessary restoring the last good setup I discoved that the following file was causing the problem:

C:\Users<user name>\App Data\Roaming\Microsoft\Windows\Network Shortcuts\My Web Sites on MSN

Note: This file was not present in my new profile. Also, the icon has the shortcut marker on it, but explorer says it is a folder. There is no file extension.

I eventually copied ALL of the other data from the bad profile to the new one and MP Navigator still worked! I then deleted the offending file from the bad profile and MP Navigator started working there too!

I then reconfigured all of my software and started IE etc. for the first time while watching the Network Shortcuts folder. The offending file has not reappeared yet. I made a shortcut to this location so I can keep an eye on it to see when it appears again.

Hopefully someone at CANON or Microsoft will fix this "corrupted" profile issue.

Sincerely,

David Witteried

Very cool - this worked for me too!!!  Well, not exactly the same but almost.  I had two other shortcuts in the same folder and I needed to delete both of them to get MP Navigator to start but that did fix it!!!  Thanks a lot - good detective work!

Hi. I have this problem, and when I log in as a different user, the software works. I would really prefer to not create a new profile. What exactly is the issue? Can a modify a registry key or some other file to get around creating a new profile?