I'd say I'm sad I don't have the bundled installer file backed-up, but I extracted the Chronicles campaigns from the game some time ago and added them as custom campaigns to my Heroes III Complete installation.
I highly advise anyone with both games to do the same:
-Chronicles "installed" this way weigh close to nothing
-You can play Chronicles with the HD mod this way
-You have access to all campaigns in one place
The only downside? Chronicles use custom portraits for Tarnum that are not installed in Heroes III. So you need to choose one of the following:
-Have Tarnum's portrait be wrong - for example showing up as Gelu
-Put the Chronicles portrait files in a relevant directory of H3 Complete (can't remember which at the moment) everytime you want to play Chronicles and remove them every time you want to play regular H3.
-Modify, and this is what I've done, campaign maps (only the first map of every campaign) to change Tarnum's portrait to another one, for example Crag Hack's or anyone's you seem fit. They won't be Tarnum original portraits, but at least they won't be totally off (Gelu).
Just my 3 cents on the matter, perhaps someone will find it useful. I would upload the Chronicles campaigns myself and share them with you, but I'm pretty sure that would be illegal, so you need to do everything yourselves if you want to play Chronicles as custom H3 campaigns.