After installing IDM premium acc registry
Go to Start>run> Type regedit > Press OK
Go to HHKEY_CURRENT_USER\Software\DownloadManager\Passwords
Open Which filehost password u want to know http://hotfile.com (or) http://rapidshare.com Double Click User FOR USERNAME
EncPassword FOR PASSWORD
me vidiyta machan mam danna vidiya balnna try karala