Yes. It is pretty tricky stuff. Robert Flaming has a long but detailed series
of blog entries that cover some of the gnarlier parts of this stuff w.r.t.
Vista UAC (somewhere on http://blogs.msdn.com/rflaming). Once you understand
the first part, his posts are quite a fascinating read.
One day I dream of getting time to write down the introduction to writing
CustomActions... but I've temporarily given up trying to do anything beyond
what I'm currently doing... there simply aren't the hours.
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Langley
Sent: Wednesday, June 27, 2007 5:53 PM
To: [email protected]
Subject: [WiX-devs] scheduling deferred custom actions for SSRS publication
Ok,
So I think I'm getting the gist of the design now.
Because my custom action is actually modifying the target system (installing
reports), I need to make it a 'deferred' custom action.
That means that it won't necessarily execute within the confines of the MSI,
hence the custom action may not be able to get a reference to the database to
read the information it needs.
So, you guys have written a set of utility classes, so that I divide my custom
action into 2 entrypoints:
1. the 'scheduler' (configured to execute immediately) which reads all
the database information my CA will need, and 'schedules' my CA for deferred
execution, along with a serialized version of its data.
2. The 'executor' which does the actual system modifications
Later down the road, the MSI runtime executes my deferred CA, and I again use
the Wix wcautil functions to deserialize my CA data, and get to work doing
whatever I need to do...
Am I on the right track?
Thanks
Adam Langley
Secon NZ
A1/400 Rosedale Road
Albany 0632
+64 (9)414 4071
www.seconag.com
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