[National Instruments NI .NET Framework 3.5 3]

More links:

"List of changes and fixed issues in the .NET Framework 3.5 Service Pack 1"

http://support.microsoft.com/kb/951847

"Download .NET Framework 3.5 Service pack 1 (full package)"

http://www.microsoft.com/downloads/details.aspx?FamilyID=D0E5DEA7-AC26-4AD7-B68C-FE5076BBA986&displaylang=zh-cn

This download is the one you want to use for packaging.