Thank you for the reply robert. I can explain you my need in short and understandable way.
I was using 9.5, now i feel like upgrading to pads standard, so here the pads standard license file will be varied for 9.5 i hope.
So i got doubt is " CAN I USE 9.5 & PADS STANDARD USING PADS STANDARD LICENSE".
Reason behind this is some of my customer who uses 9.5 requires the design done in 9.5 & few require PADS Standard design.