running imported nsis code from within a compiled nsis executable

Is it possible to import nsis code and run it from within a compiled nsis executable?

Suppose I have a nsis script fubar.nsi and compile it to fubar.exe. For strange reasons*, I also have some additional nsis statements that I want to read in and execute when fubar.exe is run - I am not sure what they will be until then.

Does a plugin or method to do this exist? Or is it simply not possible/advisable?

*the rea开发者_如何学编程son is I have several small software updates and I would rather run the statements sequentially together, prompting 1 Windows UAC request, than execute x separate .exe files instead and generate x requests.

Edit: I think a better approach might be to use the UAC plugin for the separate .exe files combined with setting

SilentInstall silent
AutoCloseWindow true
ShowInstDetails hide

in the individual updates.

As mentioned, using the UAC plugin for the separate .exe files combined with setting

SilentInstall silent
AutoCloseWindow true
ShowInstDetails hide

in the individual updates worked for me to produce only one initial UAC request. I am quite happy with this. : )