Would it be possible to configure the "The Release date of one of the selected updates...." message to something else? Would it also be possible to configure whether the user is allowed to proceed and download the update?
The reason for this is that we don't manage update eligability by license key (for good reasons which I won't go into but I'm not just being awkward!). We release a version on CD and then provide updates to that version. Once a new major version appears users need to purchase an upgrade CD to progress to the new major release and then receive further updates.
We want users who have not upgraded to be able to see the updates for the later version even though they can't have it (it won't work anyway as the MSP won't target the earlier version) as this informs them of new features which may prompt them to upgrade. Ideally if they select the later version update a message will appear saying they need to buy an upgrade CD to get that version.
The expiry date functionality is the closest thing you have to what we want but the wording of the message, and the ability to download it anyway, would be confusing to the user and not be friendly.
I'd also like to congratulate you on producing a great product. After suffering with other installer products it's such a relief to use a straightforward clean product that actually works! Keep up the good work!