Same issue here.
Installed Data Storage Software V6 Lite vesrion 6.0up04.8401.3530 32bit from a USB Cd in a DL380G3 and got the 'Could not create preactivation file. Please contact support.' during the offline activation.
Opened a support ticket. Got answer that lite version has limited support.
How do you think I test this product if I cannot evaluate it?
I am a reseller, what about NFR keys also?
Regards
Stefano