This are the errors: err:module:import_dll Library MFC42.DLL (which is needed by L"C:\\altera\\90\\modelsim_ase\\win32aloem\\modelsim.exe") not found err:module:LdrInitializeThunk Main exe initialization for L"C:\\altera\\90\\modelsim_ase\\win32aloem\\modelsim.exe" failed, status c0000135 Model Sim of Altera is free only for Windows operating system, if you want to suggest another program to me powerful like ModelSim and FREE I will happy to use it