when using win7, use an exe that is more suitable for the platform

src/engines.cpp

@@ -836,7 +836,12 @@ engines::engine::engine( Logger& logger,
 
 		m_downloadUrl = "https://api.github.com/repos/nicolaasjan/yt-dlp/releases/latest" ;
 
-		m_commandName = "yt-dlp_win7_x86.exe" ;
+		if( utility::platformIs32Bit() ){
+
+			m_commandName = "yt-dlp_win7_x86.exe" ;
+		}else{
+			m_commandName = "yt-dlp_win7.exe" ;
+		}
 	}else{
 		m_commandName = m.name ;
 	}