PE Builder v3.1.8 and newer versions support multi language.

Here is how that works:

PE Builder:
	Strings in the program are defined in "lang\<lang>.lng" files.
	Where <lang> defines the used language.
	Help pages are located in help\<lang>\*.htm
	Where <lang> defines the used language.
	When a translation is not found in the current selected language file, PE 
	Builder will take that string from the english.lng file. So when you have 
	selected a non english language and you are seeing english words, there are 
	lines missing from you current language file.
	Verbose mode messages cannot be translated (hardcoded in english).

BartPE (when runnig the CD):
	The selected language file from "lang\<lang>.lng" is copied on the CD as 
	system32\lang\default.lng

Translating the program strings:
	Please only translate from the main language file "english.lng"! This is a 
	plain text file, so you can use a text editor to create other languages. When 
	translating, try to "keep the Case" (preserve upper- and lower-case).

	To enable language auto-detect you must enter the correct lcid (language 
	identifier of the system locale), if you don't know the lcid, leave it 
	empty!!! you can enter several ids like: 
	lcid=409,40a,410
	To see what your current lcid value is, enable the Verbose mode in options and 
	start building. After building check the logfile, the lcid value will be 
	printed somewhere in the top of the log.
	
Translating the help pages:
	Please translate from the english help pages, located in "help\english\*.htm".
	Don't rename the files. This will break the contents sensitive help (F1 key).
	The help pages are very simple html pages and you can use a text editor to 
	create other languages.