Railworks won't load

[Tonysmedley]

Having bit the bullet and purchased Railworks it won't load. If I double click on setup.exe I get a message that G:\Setup.exe is not a valid Win32 application.

[FrankCook]

Hello, you might need to give us a bit more to go on. Try letting us know what your computer system specs are.

[tonic110]

You HAVE got Steam installed haven`t you ? Sorry, but it sounds like you are trying to install directly from the disc drive.
With Steam installed (for me at least) there is no need to click any .exe, just put the disc in the drive and let steam do it`s thing.
Tony.