Adding run-once registry entries from .NET application

[MIchele]

Hi,
we have a XPE system all write-locked except for only one folder where my
..NET application reside.
When I send service pack from hq in order to update my .NET application
sometimes I have to reboot my system and then, when the machine startup,
continue the update.
How I can insert the run-once registry entry if after reboot all
modifications done outside my unlocked folder get lost?

Thanks

Mike

 

[KM]

Mike,

I can see a few ways how you can implement that.
For example, you can have a RunOnce option (or even better - Run option) setup all the time and pointing to a script file that is
located in the unprotected folder you mentioned. (script could be .bat, .cmd, etc. and you launch it with cmd.exe). Then, the batch
file can take care of any logic for reboot-required-updates you want to implement - check for global flags, file existence, registry
entries, etc. Obviously, a file presence under that folder could be the indicator for any action since the file will survive a
reboot.

Another way to implement what you asked about is by using Registry Filter: http://msdn2.microsoft.com/en-us/library/aa940857.aspx.

 

[Mike Warren]

Another way to implement what you asked about is by using Registry
Filter: http://msdn2.microsoft.com/en-us/library/aa940857.aspx.

Hi Konstantin,

Are you saying it is possible to use the registry filter for more
than TSCAL persistence and Domain Secret Key persistence?

 

[KM]

Hi Mike,

Yup. There are, of cource, some limitations due to the filter driver implementation (loading time and such) but it may still be
worth to try.

The keys that need to be set up are mentioned here: http://km-dev.blogspot.com/2007/05/xpe-tip-26-changing-ip-with-ewffbwf-on.html

 

[Mike Warren]

Hi Mike,

Yup. There are, of cource, some limitations due to the filter
driver implementation (loading time and such) but it may still be
worth to try.

The keys that need to be set up are mentioned here:
http://km-dev.blogspot.com/2007/05/xpe-tip-26-changing-ip-with-ewffb
wf-on.html

Excellent. That's going to make some things cleaner for me if it
works. Thanks.