Buying S4, but seller doesn’t have install disc
I’m trying to buy a used S4, but the seller said that they’re missing the install disc for the traktor program. Is there a way around this? If there’s a way around, then hopefully I’ll have one soon 
There is no DL for the S4 software. If he did the free upgrade to T2 than you can use the T2 serial to register the demo on the NI site. He has to unregister it with NI first though.
EDIT: If he can’t for whatever reason provide you with software serial numbers you can still use the S4 with any T2 install. Just be sure to not pay for the software if you’re not getting it.
S4 had an install DVD with the software but you get the latest version from NI via the NI Service Center but you need that installed:
http://co.native-instruments.com/index.php?id=freeupdates
However, you need the serial number and as mentioned above NI has to de-activate the serial number for the original user.
Registration support link for seller