What is .net framework 3.5 langpack?

Users would need to have .net framework 3.5 core package installed in order to install langpack.

.net framework 3.5 core package can be downloaded from http://www.microsoft.com/downloads/details.aspx?FamilyId=333325FD-AE52-4E35-B531-508D977D32A6&displaylang=en.

If user wants to install Japanese .net framework 3.5 langpack, it can be downloaded from


The langpack installs resource files so that users can see localized strings such as error messages. There will be multiple languages of .net framework 3.5 langpack, but JPN is the only language released for .net frramework 3.5 langpack.