BTW component comport (can be found on SF) works without any problem.
I can also add that using a com port (the example provided too) in a remote desktop session (with Windows 7, but probably with other versions too), the application raises an exception when opening the port.
check your paths, there's something wrong with the configuration.
It's possible, buy you'd need to implement it :)
send files 300 MB
if you look around you should find this pretty easy. Check php file_upload limits...
e-mail is not a valid adress!
It must then have to do with new php5 version or selinux maybe.