As of 12.01.2015: Version 6.7.4
Notepad++

Menu > Plugins > Plugin Manager#

Note: You may need to set a proxy in the plugin-manager settings!

Default	Name
x	Converter
x	DSpellCheck
x	MIME Tools
x	NppExport
x	NppFTP
x	Plugin Manager
	Compare*
	Document Monitor
	TextFX Characters
	Tidy 2
	XML Tools

* Note: Comparison does not show changes inside similar lines. You should use WinMerge here.

Syntax highlighting#

1. Install Plugin "CollectionInterface"
2. Open CollectionInterface > CollectionInterface: Download
3. choose any from tab "UDL" (user defined language) like "ABAP (by Christian Kosasih in 2012)"

(note for ABAP 2021 you need to have a different color theme)

or do manually,
check <InstallFolder>\userDefineLang.xml