Protocols/MSNP/Development

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MSNP Protocol
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Scenarios
Microsoft Messenger for Mac
MSNP on WebTV (MSNTV)

Clean Install

Create a .bat file with the contents shown below but replace {EmailAddress} with the email address you are using on MSN Messenger:

rmdir /S /Q "%USERPROFILE%\AppData\Local\Microsoft\Messenger"
rmdir /S /Q "%USERPROFILE%\AppData\Local\Microsoft\MSN Messenger"
rmdir /S /Q "%USERPROFILE%\AppData\Local\Microsoft\Windows Live Contacts\{EmailAddress}"
rmdir /S /Q "%USERPROFILE%\AppData\Local\Microsoft\Windows Live\Contacts"
rmdir /S /Q "%USERPROFILE%\AppData\Local\Temp\MessengerCache"
rmdir /S /Q "%USERPROFILE%\AppData\Local\Temp\{EmailAddress}"
rmdir /S /Q "%USERPROFILE%\AppData\Local\Temp\{EmailAddress}.shadow"
rmdir /S /Q "%USERPROFILE%\AppData\Roaming\Microsoft\MSN Messenger"
rmdir /S /Q "%USERPROFILE%\Contacts\{EmailAddress}"
REG DELETE "HKLM\Software\Microsoft\Windows Live\Messenger" /f
REG DELETE "HKLM\Software\Microsoft\MSNMessenger" /f
REG DELETE "HKCU\Software\Microsoft\MSNMessenger" /f
REG DELETE "HKCU\Software\Microsoft\Windows Live\Communications Clients\Shared" /f
REG DELETE "HKCU\Software\Microsoft\IdentityCRL" /f
pause

Start the .bat file by right clicking on it and select Run as administrator.

You may also want to remove your Temporary Files and Temporary Internet Files using Disk Cleanup or CCleaner.

Sources:

https://messengersupportspace.wordpress.com/2009/05/29/clean-installation-of-windows-live-messenger-%e2%80%93-windows-vista/

https://messengersupportspace.wordpress.com/2009/05/29/clean-installation-of-windows-live-messenger-%e2%80%93-windows-xp/

Debug Logging

Messenger

Messenger for Windows has the ability to create a log file.

Here is a reg file Debug.reg to enable the logging on (at least) versions < 9.

The log file will be in the Documents > My Received Files (the folder name depends on Messenger language).

In Windows Live Messenger, you will find some logs there: C:\Users\{user}\AppData\Local\Microsoft\Messenger\

Microsoft Identity Control

You can use these 2 reg files to turn on/off logging for microsoft identity control components (msidcrl, …):

Enable_Logging.reg

Disable_Logging.reg

The path were the log will be is in the reg file. If you don’t change the path in the reg files, you need to create 2 folders: C:\MSOTrace and C:\MSOTraceLite

Sources

NOTE: Please replace MSOIdentityCRL by IdentityCRL in registry keys name when needed.

https://messengersupportspace.wordpress.com/2007/08/03/how-to-create-a-messenger-idcrl-log/

https://social.technet.microsoft.com/wiki/contents/articles/18103.microsoft-online-services-sign-in-assistant-how-to-enable-debug-tracing.aspx

https://support.microsoft.com/de-de/help/2433327/how-to-enable-and-disable-a-trace-for-the-microsoft-online-services-sign-in-assistant

OLD

If you are a user having issues with Escargot, please:

  1. Uninstall MSN Messenger by going to Control Panel > Programs > Programs and Features (for Windows 7; Control Panel > Add/Remove Programs in Windows XP and below), select MSN Messenger x.x, or Windows Live Messenger in the list and click on Uninstall.
  2. Check that the C:\Program Files\MSN Messenger/C:\Program Files (x86)\MSN Messenger folder (C:\Program Files\Windows Live\Messenger/C:\Program Files (x86)\Windows Live\Messenger for WLM 8.5) doesn’t exist anymore or is empty. If files still reside in the specified folders, delete them.
  3. Reinstall MSN Messenger by either using the pre-patched installers found on this page (if you already have it please redownload it because we may have changed it since the last time you downloaded it), or you can alternatively download an unpatched version and manually patch it.
  4. If MSN Messenger is open, close it by right clicking on the MSN Messenger icon in the system tray (the area with the system date/time and other icons) and click on the Exit menu strip.
  5. Create a folder named Escargot in the root of your system’s hard drive (e.g, C:\Escargot).
  6. Download Debug_Escargot.reg and launch it by double clicking on it. At the “Adding information can unintentionally change or delete values and cause components to stop working correctly. (…) Are you sure you want to continue?” prompt, click on Yes.
  7. Download msidcrl-debug.dll, rename it to msidcrl.dll and use it to replace msidcrl.dll in C:\Program Files\MSN Messenger/C:\Program Files (x86)\MSN Messenger (or C:\Program Files\Windows Live\Messenger/C:\Program Files (x86)\Windows Live\Messenger for WLM 8.5).
  8. Launch MSN Messenger.
  9. Try logging in or try to reproduce the problem you are dealing with.
  10. Refer to Step 4.
  11. Download Stop-Debug_Escargot.reg and follow the same instructions in Step 6.
  12. Go to the Escargot folder you created in the root of your system’s hard drive and send us the files you have inside it.
  13. Go to the C:\Program Files\MSN Messenger/C:\Program Files (x86)\MSN Messenger (or C:\Program Files\Windows Live\Messenger/C:\Program Files (x86)\Windows Live\Messenger for WLM 8.5) folder and send us the escargot-msidcrl.log created inside said folder.
  14. Go to My Received Files folder (or the language-specific version of the folder, if any) in your Documents folder and send us the MsnMsgr.txt file in there as well.

Tools

Here are some tools that may be useful:

API monitor:

Network monitor:

Disassembly:

Strings extraction:

API hooking:

Various: