Hello Ninskaya,
I understand that you're experiencing problems installing NI-488.2, and I knwo of a couple of knowledge base entries that include instructions to resolve your problem. Please click one of the below links (choose your respective operating system), and follow the on-screen instructions.
Windows 98/95/ME Windows NT If you're using Windows XP, please let me know and I can point you towards a different fix.
I hope this helps! Please contact me if you need further assistance.
Kind Regards,
Joe Des Rosier
National Instruments