OK.
There are a number of "layers" involved when you run Ship SImulator.
First of all, the game video engine (Questviewer in this case) receives data from all sorts of sources. It has to work out where each corner of each polygon is, in relation to all the others.
Then it sends all of the vector information out through the Windows sub systems.
Those subsystems will then use the various CODECS to compress the data streams and perform some pre-processing work.
The CODECS then pass the data through the video drivers that translate the vector information (and other data) into a format that the card can understand.
Then the card translates all of that and draws your image in a series of layers making up a single image or "frame". Then the frame gets pasted onto the video memory layer and sent to your VDU.
I've simplified this greatly, so forgive all of the ommitted hardware translations and the abstration layering, etc.
Video drivers are a bit old, but those ones should be fine for Ship Simulator. "Newest" doesn't mean "best".
You do have some other issues:
(1)
Your processor is way too slow. No fix.
(2)
Ship Simulator specifications don't allow for Intel video devices. No fix, except install a card (Nvidia recommended).
(3)
A quick improvement you can make, though, is to install a set of CODECS. Before you do anything, create a system restore point in case any of the CODECs conflicts with any of your programs.
VISTA:
http://www.softpedia.com/get/Multimedia/Video/Codec-Packs-Video-Codecs/Advanced-Vista-Codec-Package.shtml
When you get to the download dialogue, tell it to "Open", rather than "save". That will install the CODECs straight away. Just sit back and watch.