Sadly Rowan went out of business but I can post a couple of links that work still.

http://fly.to/rowan

http://members01.chello.se/carlberg/fcg/main.htm

When I had my diamond monster 3dII installed there were 3 display driver choices: Rowan Driver, Direct3d, 3dfx Driver. Currently I'm using D3D, but as posted previous, I miss the 3dfx display.

Thanks, JimB.

Rowans Flying Corps Gold doesn't list my V5 PCI as a selectable display driver. Within the flt sim's root directory is Rowans 3dfx.txt guide to correct this. Their 3dfx.txt is based on a Win95 system with 3dfx based secondary card. They suggest looking in the registry in the following location and say the 3dx card needs re-installed if the line isn't there:

"Some problems may occur when using 3Dfx based 3D
accelerated cards as a secondary card if the primary
display card (Your 2D card) also has some 3D acceleration.

When you run Flying Corps, if you find that on the graphics
driver selection screen only 'Rowan Software Driver' and
'Direct3D Hardware Driver' are listed and that the Direct3D
hardware driver option has been greyed out then this means
that your 3Dfx card has not been installed successfully.

This problem occurs when the 3Dfx card has not been correctly
registered by Windows 95. The solution is to re-install your cards drivers.
The following test can be used to check
whether your card has been installed correctly.

From the windows 95 desktop click on the 'Start' menu item
and select 'Run'. In the 'Run' dialog type 'regedit'
and select 'OK'. This will launch the windows 95 registry
editor. The display in the lefthand window should look
something like the diagram below."

"[-]----My Computer
   |
 

• -HKEY_CLASSES_ROOT
     |
   
• -HKEY_CURRENT_USER
     |
    [-]-HKEY_LOCAL_MACHINE
     |  |
     |
• -Config
     |  |
     |
• -Enum
     |  |
     | [-]-hardware
     |  |  |
     |  |
• -DESCRIPTION
     |  |  |
     |  |
• -devicemap
     |  |  |
     |  | [-]-DirectDrawDrivers
     |  |     |
     |  |     []-aba52f41-f744-11cf-b4-52-00-00-1d-1b-41-26
     |  |
     |
• -SOFTWARE
     |  |
     |
• -System
     |
   
• -HKEY_USERS
     |
   
• -HKEY_CURRENT_CONFIG
     |
   
• -HKEY_DYN_DATA
  
  Double clicking on the string of characters under the
  'DirectDrawDrivers' entry should cause a description
  string and driver name to be displayed in the right hand
  window. If this does not match the name of your card
  then you do not have the cards drivers installed correctly.
  
  If after attempting to re-install your card's Direct3D drivers
  you still cannot find your card's details in the registry as defined
  above then we suggest that you contact
  your card's manufacturer for technical support."
  
  Checking my registry there isn't an " [-]-DirectDrawDrivers" entry
  
  Is it possible to add an entry there to get the sim to recognise my V5 PCI so that it is a selectable display driver? If so what should I add there? Add a link in that location to the V5 driver?
  
  My V5 is installed fine, works for other sims and programs. Hoping there's a work around flying FCG in 3dfx mode. Before the V5, I had my Monster 3dII installed and it worked fine. FCG looks ok using Direct 3d Hal or Rowans Display Driver, I just miss the 3dfx display which adds alot to an already outstanding ww1 sim
  
  My PC: win98e, AMD 1.4mhz, 383meg pc133 sdram, dx8.1, AopenAk73Pro(a) Mobo, v5-5500pci 4.12.01.0666 drivers(went back to these drivers from the AmigaMerlin due to compatibility problems with SDOE)
  
  Thanks,
  
  JimB.