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installationwindows-installerregistryrunonce
AndrewK
AndrewK

Reputation: 31

Windows Installer is invoking the RunOnce key immediately

In my MSI installer package I have a custom action which adds a RunOnce key. However, it surprised me to observe that, at the end of the install, the RunOnce key is invoked immediately (and then deleted), whereas I was anticipating this to occur only when the pc is restarted. Is this behaviour standard, or can it be switched off? This is happening on Windows 7 64-bit. Any help gratefully received, many thanks in advance. Cheers, Andrew.

Upvotes: 1

Views: 1011

Answers (2)

AndrewK
AndrewK

Reputation: 31

I solved my problem by using the RunOnceEx reg key, instead of RunOnce. Everything works as expected now. Cheers!

Upvotes: 2

Bogdan Mitrache
Bogdan Mitrache

Reputation: 11013

Can you try the package on another Win7 machine, even virtual machine? From what I know only the restart should invoke the key, so maybe there is something corrupted on this machine that causes the behavior.

EDIT: After posting I found this MSDN blog which says the key can get invoked in certain conditions. http://blogs.msdn.com/b/junfeng/archive/2006/09/19/761765.aspx

To avoid the key invocation you could try to execute the custom action that creates it as late as possible during the installation.

Upvotes: 3

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