Msmsgs.exe has encountered a problem and needs to close

To resolve this error, make sure that the latest version of Windows Messenger is installed on your computer. The latest version of Windows Messenger is available as a free download from the following MSN Web site:
http://messenger.msn.com (http://messenger.msn.com)
To determine the version of Windows Messenger that is installed on your computer:
1. Start Windows Messenger.
2. On the Help menu, click About Windows Messenger.
3. Note the version number, and then click OK.

MSN Messenger Error 81000306

It indicates the proxy server or firewall on your network does not allow incoming connections. Use a web based messenger to get around this.Be careful not to get caught ,some companies can be a real pain with this.

MSN Messenger Error 80048869

Go to a DOS prompt and type in the following OR go to Start -> Run and then copy and paste each line below hitting after each one.

regsvr32 Dssenh.dll /s
regsvr32 Gpkcsp.dll /s
regsvr32 Slbcsp.dll /s
regsvr32 Sccbase.dll /s
regsvr32 Softpub.dll /s
regsvr32 Wintrust.dll /s
regsvr32 Initpki.dll /s
regsvr32 Rsaenh.dll /s
regsvr32 Mssip32.dll /s
regsvr32 Cryptdlg.dll /s
regsvr32 Msxml3.dll /s

MSN Messenger Error 80048820

This may occur if the time and date setting is incorrect.Verify this by double-clicking the clock at the bottom right corner of your screen, click ok once/if everything is adjusted right.if this does not help,register the DLL files again with the Run commands below.

Open a Run window by clicking Start->Run. Type the following commands and press enter
regsvr32 softpub.dll Wintrust.dll Initpki.dll Rsaenh.dll Mssip32.dll Cryptdlg.dll
Windows XP users should type another command
regsvr32 Dssenh.dll Gpkcsp.dll Slbcsp.dll Sccbase.dll

MSN Messenger Error 80072efd

Sorry, we were unable to sign you into Windows Live Messenger at this time. Please try again later.
Error code: 80072efd

Error code 80072efd indicates that there is a problem with the .NET Messenger service, one or more servers might be down or having problems.Typically this does not take longer than a few hours.To be sure that things are OK on your side verify that your proxy settings are correct by going to Tools->Options->Connection->Advanced Settings. If you do not use a proxy server, uncheck all the checkboxes except for the one labeled TCP.Close Messenger and open it up again and try connecting.
In Internet Explorer: click Tools-> Internet Options, select the "connections" tab.Uncheck "Use a proxy server for LAN" and check "Automatically detect settings". This configures Internet Explorer and Messenger to automatically find the best way to connect to the internet.If this does not resolve the problem,it is likely that the Windows digital signatures system is damaged.Resolve it by re-registering the DLL files.Here's how

Open a Run window by clicking start, then Run (or hold down the Windows key + R). Now, type the following command and press enter:
regsvr32 softpub.dll Wintrust.dll Initpki.dll Rsaenh.dll Mssip32.dll Cryptdlg.dll
Windows XP users will need to type an extra command:
regsvr32 Dssenh.dll Gpkcsp.dll Slbcsp.dll Sccbase.dll

MSN Messenger Error 80048820

You are unable to sign in.

"Sorry, we were unable to sign you in to the MSN Messenger at this time. Please try again later"

You may want to check your router setting as this may be caused by you router configuration.A service interruption or a blackout could cause this.

1.Enter IP address 192.168.0.1 on the address bar.
2.Log on via your user name and password of your ISP.
3. Enter Admin, password
4.GOTO advance menu (left hand side of screen)
5.GOTO WAN set-up
6.GOTO MTU size, and change to 1400
7.Apply, OK.

MSN Messenger Error 800401f3

Go to a DOS prompt and type in the following OR go to Start -> Run and then copy and paste each line below hitting after each one.

regsvr32 Dssenh.dll /s
regsvr32 Gpkcsp.dll /s
regsvr32 Slbcsp.dll /s
regsvr32 Sccbase.dll /s
regsvr32 Softpub.dll /s
regsvr32 Wintrust.dll /s
regsvr32 Initpki.dll /s
regsvr32 Rsaenh.dll /s
regsvr32 Mssip32.dll /s
regsvr32 Cryptdlg.dll /s
regsvr32 Msxml3.dll /s

MSN Messenger Error 80070002

"Service is Temporarily Unavailable"

- Search for ppcrlconfig.dll (probably located in X:\Documents and Settings\All Users\Application Data\Microsoft\IdentityCRL\ppcrlconfig.dll) and delete it.
- Remove any WLM or MSN Messenger installed (including MSG Plus).
- Restart Windows Live Messenger or MSN Messenger.

MSN Messenger Error 8004888D

Windows XP Resolution
Go to a DOS prompt and type in the following OR go to Start -> Run and then copy and paste each line below hitting after each one.
regsvr32 Msxml3.dll /s
regsvr32 Dssenh.dll /s
regsvr32 Gpkcsp.dll /s
regsvr32 Slbcsp.dll /s
regsvr32 Sccbase.dll /s
regsvr32 Softpub.dll /s
regsvr32 Wintrust.dll /s
regsvr32 Initpki.dll /s
regsvr32 Rsaenh.dll /s
regsvr32 Mssip32.dll /s
regsvr32 Cryptdlg.dll /s
___________
Windows 2000, Windows XP & Windows 2003 ONLY
Start/Run
Type "gpedit.msc" ENTER
Click + by Computer Configuration
Click + by Windows Settings
Click + by Security Settings
Click + by Software Restriction Policies
Click + by Trusted Publishers
For "Allow the following users to select trusted
publishers," the default is "End users."
If you do not have this at all, this does not apply.
This is typically the activeX error or the 0x800b0004
The log file contains "Error 0x80092026: The cryptographic operation failed due to a local security option setting.", error. This occurs due to local security setting, to resolve the issue check for "safer" key in registry and delete it.

Locate the following key
Start/Run
Typr "regedit" ENTER
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\
SystemCertificates\TrustedPublisher
Under "TrustedPublisher" look for "Safer" key.
Delete the "Safer" key if it is there.