I've done something similar, but while I don't have a solution to your
'double-click Next' issue, I can suggest how my validation works.
On the 'Next' control button I have a pair of Punlished Events for
true/false as you do, but only one is "NewDialog". The
REGISTRATIONCODEVALID="false" case pu
I have an msi with 2 custom dialogs in it. The first one has a single
edit that the user will enter a registration code in. The next button
has a Custom Action called ValidateRegCode that calls to a helper dll to
validate the users entry. If the user has entered a valid registration
code the
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