I ran PF3_register.exe about a half dozen times as admin. The PFE_net.dll is in the folder.Have you tried running PF3_Register.exe as Admin (eg. right-click and select 'Run as Administrator') because the error is caused by PFE_Net.dll not being registered on your system. Perhaps check the file is actually in your main PF3 folder in case your AV has moved it to quarantine (it does happen)