Files Installation for a NsDialog NSIS page

Question

I have written my installer pages with the custom UI needed. I dont understand where to put the actual installation part code. For eg: I want to extract some files and stamp them.

I have a installation progress bar status page. I am trying to perform all these operations while user is on this page.

Wrote a function as follows

Function MyInstallFun

;Extract something
;Execute msi file
;Execute bat file

FunctionEnd

I tried following approach

Page custom ProgressPage MyInstallFun 

But this way the part is executed on after user clicks Next

Also, Tried Call MyInstallFun from inside of Function ProgressPage but the UI looks blank for a while until operations take place and then progress Page is displayed which is wrong.

Can someone please suggest how to install some heavy files using NSDialog custom page?

Answer 1

You are not really supposed to perform long operations on other pages. You could try running the operation in a background thread...