Solution found (don't ask me why this works)
I downloaded and installed "directx_Jun2010_redist.exe".
Then I ran "dwwebsetup.exe" (available at site given by 1st poster), it failed.
Then I ran "dwwebsetup.exe" a second time, it succeeded ! (This sequence was the same on another identical machine)
Program then started, patched, and worked.
Thanks folks
(tried OpenGL, no good, maybe better on Linux?)
I downloaded and installed "directx_Jun2010_redist.exe".
Then I ran "dwwebsetup.exe" (available at site given by 1st poster), it failed.
Then I ran "dwwebsetup.exe" a second time, it succeeded ! (This sequence was the same on another identical machine)
Program then started, patched, and worked.
Thanks folks
(tried OpenGL, no good, maybe better on Linux?)