nstalled flight simulator 2004 , it says <this application failed to start because MSVCR70.dll was not found. plz help me

i installed flight simulator 2004 , it says <this application failed to start because MSVCR70.dll was not found. reinstalling the application may fix this problem> i dont know what to do plz help me or look for help if you can and i will be appericiated,,,