This page contains a list of licensing issues related to STAAD.Pro :
"Copy protection device/system does not support AISC/ASD code." The design will not be performed.
FAQ ON STAAD LICENSE - USL versus STANDARD
"Trial/Valid license was not found" message still appears even when licenses are available
My company has one license for STAAD.Pro, can I use it in a desktop and a laptop?
Trust licensing in STAAD.Pro SELECTseries 5