Windows Vista ਭਾਸ਼ਾ ਇੰਟਰਫੇਸ ਪੈਕ

you can download Punjabi LIP for windows vista here:-
http://www.microsoft.com/downloads/details.aspx?FamilyID=0e21eb7b-e01a-4fcc-b7f1-30e419da7f5b&displaylang=pa