Is itunes setup.exe not a valid win32 application or is it an error?

Recently Windows has reported that iTunesSetup.exe is not a " iTunesSetup.exe is not a valid Win32 application. " Is this true? No. Let me explain here: Did you download the itunes in your Internet Explorer Web Browser ? If yes, the most possible reason why you get the message "not a valid win32 application", is that that installer file was damaged during downloading OR the download was not complete.