Hi,
There is not a difference between the protocols supported in LoadRunner 12 and PC 12.
Supported protocols are listed in the Product Availability Matrix
http://support.openview.hp.com/selfsolve/document/KM00768664/binary/LR12.00_PAM.pdf
Additional information is available in the LoadRunner 12 User guide:
http://support.openview.hp.com/selfsolve/document/KM00756083/binary/LR12.00_LoadRunner.htm
Kind regards,
