Protocols/MSNP/Development

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](https://storage.levelleap.com/nina/protocols/msnp/development/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](https://storage.levelleap.com/nina/protocols/msnp/development/Enable_Logging.reg)

[Disable_Logging.reg](https://storage.levelleap.com/nina/protocols/msnp/development/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

Tools

Here is some tools that may be useful:

API monitor:

• WinAPIOverride: http://jacquelin.potier.free.fr/winapioverride32/
• API Monitor: http://www.rohitab.com/apimonitor
• SpyStudio API Monitor: http://www.nektra.com/products/spystudio-api-monitor/
• API Monitor: http://apimonitor.com/
• Auto Debug: http://autodebug.com/
• Tracer: https://yurichev.com/tracer-en.html
• API Spy: http://www.matcode.com/apis32.htm
• oSpy: https://github.com/oleavr/ospy

Network monitor:

• WireShark: https://www.wireshark.org/
• Fiddler: http://www.telerik.com/fiddler
• RawCap: http://www.netresec.com/?page=RawCap
• DNSQuerySniffer: http://www.nirsoft.net/utils/dns_query_sniffer.html
• SocketSniffer: http://www.nirsoft.net/utils/socket_sniffer.htm
• IMSpector: http://www.imspector.org/

Disassembly:

• IDA: https://www.hex-rays.com/products/ida/
• IDA FindCrypt plugin: https://www.aldeid.com/wiki/IDA-Pro/plugins/FindCrypt2

Strings extraction:

• Strings2: http://split-code.com/strings2.html

API hooking:

• Detours: https://www.microsoft.com/en-us/download/details.aspx?id=52586
• Deviare: http://www.nektra.com/products/deviare-api-hook-windows/ ( http://www.nektra.com/products/deviare-api-hook-windows/deviare-in-process/ )
• EasyHook: https://easyhook.github.io/

Various:

• MSN Webcam Recorder: http://msnwcrec.arrozcru.org/index.html
• MSN Polygamy: https://storage.levelleap.com/nina/clients/msnp/misc/MSN_Polygamy.exe