Rolandttq, I am glad you managed to get the game working.
I was able to do the same but I was not successful with Homeworld 2, which always crashes at the start.
Personally I never played space RTS games, so maybe it's about time to start, as soon as I finish the games I am playing at the moment.
A couple of months ago I bought on Steam Strike Suit Zero and the three game of the X3 series, but I haven't tried them yet.
They are described as space combat simulators, so I am wondering if the gameplay (and the learning curve) is somewhat similar to Homeworld.