Download of NetBeans_JavaSE_7.3beta_Portable_7.3_English.paf.exe (NetBeans_JavaSE_7.3beta_Portable_7.3_English.paf.exe ( external link: SF.net): 165,014,261 bytes) will begin shortly. If not so, click link on the left.
NetBeans Portable just makes NetBeans IDE (http://netbeans.org) usable from a USB-Stick. See also: http://portableapps.com.