Hello,
You can probably solve this problem by going to Start >> Run and typing the following:
Regsvr32 \msi.dll
Where is the folder where the msi.dll file resides on your computer (you can use Start >> Find to find the exact location). Once you do this, the installation of the 6.0.2 update should work properly.
Please let me know if you continue to have any problems. Thanks for your patience on this issue, and have a pleasant day.
Sincerely,
Darren Nattinger
Applications Engineer
National Instruments