I've done some research in using system wide environment variables (not wix
installer session variable) and the exit dialog. I've been able to setup an
environment variable and then run the installer and echo the value of the
variable in the Exit Dialog screen.
I take it one step further and one of last custom actions in my installer
installs/upgrades a database and then sets an System wide environment variable
(not a wix session variable) as an attempt to pass this information back to the
Exit Dialog. The custom action (vb.net) uses the
Environment.SetEnvironmentVariable("HTSDATABASECONVERSIONERROR", status & " " &
DateTime.Now.ToString, EnvironmentVariableTarget.Machine)
Once the installer is complete, and I get the exit dialog, I don't see the
value echoed in the dialog however, when I type "set" at the command prompt I
can see the environment variable with its value. I'm thinking the installer
takes a snapshot of the environment variables needs to "refresh" its view of
the Environment variables but I don't know if this is true or not.
To be clear on what I'm trying to accomplish, after I run the install, I want
to be able to see the value of the HTSDATABASECONVERSIONERROR system
environment variable (as set by the custom action) in the Wix Exit dialog.
Thanks !
Rob
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