In Express 7.0, even if you don't have a 'Run when finished' entry, the Finish dialog still shows a checkbox for that purpose.
I would prefer not to allow users to run my app at this time and certainly don't want them to be offered a bogus option.
My reason for not wanting offer the 'run when finished' thing is that MSI installs seem to hog the CPU for a fair amount of time after the actual install has completed, at least on my machine (P4 2.0Ghz, 1.5GB RAM).
The combination of this effect and my own app starting up means that the very first time my users start my program, they're going to get a delay. Not a good first impression.
How can can I get rid of the checkbox on the Finish dialog?
Simon, get the upgrade to Studio. You won't regret the decision.
After you upgrade I'll bet that you discover all kinds of functionality improvements you will want to make to your installation in order to improve the your users experience.