1st result when searching "shareware":
I see, but few website shows conflicting information. For example,
Copyright law also protects shareware. Shareware provides users the opportunity to try software for free before deciding whether to buy it. Shareware may be a more limited version of the program available for sale, and is also restricted by license. Typically, the license restricts shareware users from modifying, copying or distributing the shareware in any way. Continuing to use shareware after the designated trial period is an infringement of the copyright in that shareware and may constitute piracy.
Shareware CD sellers operated in something of a legal grey area. Ostensibly, they only collected fees that covered the cost of manufacturing, printing, and distributing the disks or CDs. But let's be honest: If it weren't profitable to sell a disc of free software, very few would have done it.
What do you think?