Historically the difference was clear:
The Server was the analytic part; the QlikView engine that gets requests from clients on selections in the data model inside a qvw file.
The Publisher was the administrative part: user management, file distribution, scheduled reloads etc.
However, both the server and the Publisher are nowadays merged together in the same software package, so you cannot always say that a specific module belongs to one and not the other.
But the two licenses are there: If you have a server license only, you do not have all the administrative tools, e.g. you cannot distribute files (chop one master file up into several user documents). But if you have both server and publisher licenses, then you have full administrative capability.
HIC
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