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3/19/2009

Windows Live Messenger: Unable to Connect Error 80040200 Fix

 

I stumbled across this fix via a web search in the Live Messenger Blog about a different error code. It worked for me on Windows Vista.

1.) Close Messenger. Go into Task Manager and ensure that the “msnmsgr.exe” process is not there. If it is, kill the process.

2.) Navigate to C:\Users\<YourUserName>\AppData\Local\Microsoft\Windows Live Contacts and delete the entire contents of the folder.

3.) Restart Windows Live Messenger. Voila!

There is another issue I found where the standalone installer for Messenger fails with a message like “could not open key…”. One fix for this is to navigate to the C:\Program Files\Windows Live\Messenger folder and DELETE the msnmsgr.exe executable if it is there.

ReallyReallyDumb Exception Messages Department

 

I think it was Donn Felker who first tweeted about this, but I didn’t believe it until I got one myself:

 

NullableObject

Go Figure!

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26 Comments:

Anonymous Anonymous said...

thanks

2:44 AM  
Blogger Tor Hershman said...

Yikes!!!

5:05 PM  
Anonymous Anonymous said...

Yes, works, thankx....

3:29 AM  
Blogger Bill said...

nicely done. worked great. any idea of what causes this?

6:28 PM  
Blogger Peter Bromberg said...

@Bill,
There is a contacts.edb contacts database that can get corrupted. By deleting all this, you are forcing Messenger to regenerate this data fresh.

6:39 PM  
Blogger sdc said...

BTW, I neglected to point out that I've done this fix three times now. After deleting (as per the instructions), Windows Live Mess. works fine for about a day.

I am certainly not going to apply this fix every day... so unless MS fixes this, I will need to revert back to the older Messenger.

6:45 PM  
Anonymous Anonymous said...

You can just restart MSN and it works I was afraid all my settings would go so I just restarted it and it worked.

11:52 AM  
Blogger Dolphin said...

Thank you thank you thank you thank you! That was making me nuts and yours was the fastest and simplest solution. Much obliged!

5:05 PM  
Blogger sdc said...

Does anyone know WHY this is occurring?

I never had a problem until I upgraded to this version of Messenger. Peter's 'fix' does work, however, it is temporary. It seems that Messenger fails every few days. I can restart it but it is only a matter of time before it fails again!

Microsoft's support doesn't even acknowledge that this is a common issue!

Anyone?

6:39 PM  
Anonymous Anonymous said...

Don't know what happened to get into this problem, but thanks so much for the step by step - worked like a charm!

10:11 PM  
Blogger estelle said...

thanx a lot for helping with stupid msn! I was stuck like this for days, and now...miracle ;)

4:33 AM  
Blogger hugo said...

THANK S ALL THE BEST this realy works

1:04 PM  
Anonymous Anonymous said...

thank s all the best

1:05 PM  
Anonymous Anonymous said...

Thank you!!! it works with my pc

10:58 PM  
Anonymous Anonymous said...

Great. Do not know how to thank you. Nice clear and step by step instructions. Worked perfect :)

10:11 PM  
Blogger Alejandra said...

Thank you. It worked! Genius. Pretty straight forward! Thanks!!!!!!!!

8:29 PM  
Anonymous Anonymous said...

I can follow it up to step 2 where it says what files to go into, but my appdata isn't in our user folder

What do I do???

4:58 PM  
Blogger wykael said...

Worked in Vista. I'm back up!

8:29 AM  
Anonymous Anonymous said...

thanks a lot
happy i didn't have to reinstall wlm

1:14 PM  
Blogger Mohammad said...

Please check you system datetime. For some reason my system datetime was set in 2 months ahead(I have young twins so I am not surprized). But Peters fix didn't work for me. I did go on that folder and deleted the file. When I tried to log in, I was getting the error and that's when I noticed the "date" . I fixed the date on the system and it logged in just fine.

9:23 AM  
Anonymous Anonymous said...

Can you explain for all us internet thicko's (i.e me) how to get to that folder where u have to delete everything
Thanks
x

12:44 PM  
Blogger Peter Bromberg said...

Read Item #2 in the post. "YourUserName" is the name of your user profile on the machine.

12:52 PM  
Blogger Mohammad said...

Peter, I did put this in my blog here.

http://mohammad-hoque.blogspot.com/

1:46 AM  
Anonymous Anonymous said...

Thank you so much. Your fix worked perfectly in Vista!

8:41 AM  
Blogger Samir said...

Thank you!!
works perfectly!!

Windows Vista

6:39 AM  
Anonymous Ruth said...

Thank you so much! This was exactly what i needed to do!!

2:00 PM  

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