gunzip AB-2.10.tar.gz
tar xf AB-2.10.tar
(setq load-path(cons "[PATH]\AB-2.10\AE" load-path))
(require 'ab-mode)
Remember that [PATH] is the path where you installed the package.
setenv CLASSPATH [[PATH]/nebulous.jar: [PATH]/gnu-regexp-1.1.4.jar:$CLASSPATH
set CLASSPATH=[PATH]\nebulous.jar; [PATH]\gnu-regexp-1.1.4.jar;%CLASSPATH%