I hope you have resolved the issue that you had with emmet. Please note that Ctrl+Alt+Enter is also set to create a newline in the Notepad++ key configuration.
Please change it to a TAB and then if you still have a problem re-install emmet and the latest python script manually.
I extracted and copied each file manually to the required Notepad folder.
The auto install via plugin manager failed for me.
Copy python27.dll to Notepad++ root folder under program files
Go to Notepad++ Plugins and paste the pythonscript.dll and pythonscript folder
Copy emmet contents to the plugin folder.
Relaunch and map TAB to expand emmet short hand.