Hi, I faced similar problem and I'm glad someone got through.
My challenge was using Nikon Scan 4.02 with
Windows XP Professional x64. I did not find any hints, unlike for Vista x64, on the Internet. I was ready to bother myself with VMWare, but (luckily?) it failed with BSOD in guest OS (Windows XP 32-bit) USB driver.
I hat no choice, so I followed the pattern proposed for Vista:
1. install a demo version of an application which incorporates 64-bit drivers for my Nikon Coolscan V ED (like SilverFast or VueScan)
2. install Nikon Scan 4 without drivers on top
3. enjoy
Unfortunately Nikon Scan 4 (non of 4.00, 4.02 or 4.03) won't install on Windows XP x64.
"Nikon Scan 4 does not run on this operating system" it sais.
The
solution is install Nikon Scan 4 on 32-bit OS and then just copy the software.
So adjusted pattern is:
1. install a demo version of an application which incorporates 64-bit drivers for my Nikon Coolscan V ED (e.g. download SilverFast Ai IT8 from
http://www.silverfast.com/get_demo/en.html?product=447)
2. install Nikon Scan 4 on 32-bit OS und update to 4.02
3. copy folders from 32-bit Windows onto your x64
C:\Program Files\NikonC:\Program Files\Common Files\NikonC:\Program Files (x86)\Common Files\Nikon (it's missing on 32-bit, copy it from C:\Program Files\Common Files\Nikon)
C:\WINDOWS\twain_32\Nikon4. don't forget to ENJOY!!!
I do enjoy now because this incapability of Nikon Software was the pain in my a... for all these years. You can imagine how happy I am now :-)
Blame on Nikon software engineers who don't care of any solution while they do have 64-bit drivers (SilverFast claims to use standard drivers from Nikon) and the software itself runs on 64-bit just perfect.