Vista 32 bit - file/properties/details tab missing info for .sys files

[Mick]

Hi all,
Just recently I have noticed that when viewing file properties for .sys
files the 'details' tab contains very little information, as can be seen
here with tcpip.sys:
http://www.mikeyjames.com/psys.jpg

It seems about 50/50 whether details from a .sys file will be interpreted
properly by Vista. This was confirmed by using System Information:
http://www.mikeyjames.com/sysinf.jpg

I then noticed that a third party app (SiSoft Sandra) was able to read the
info without any problems:
http://www.mikeyjames.com/psandra.jpg

I thought I'd try and see what effect changing the file extension had &
changed it to tcpip.dll. This resulted in all the info being displayed:
http://www.mikeyjames.com/pdll.jpg

This also worked when I renamed to tcpip.exe. The problem happens on my
laptop with Vista Business and Desktop with Vista Ultimate. I've tried
running ShellExView and disabling any 3rd party extensions to no avail. Any
ideas about what is going on here? Any ideas as to how I can get Vista to
display the properties of system files properly?

Thanks in advance

Mick

 

[Ramesh Srinivasan, MS-MVP]

Is this issue seen for *all* .sys files, Mick?