Dynamically update the language string

I have defined the following variable in the language file:
!insertmacro MUI_LANGUAGEFILE_STRING MUI_TEXT_FINISH_SHOWREADME "$ShowReadMeTxt"

Installer changes the value of the variable at run-time (depending on user input), however, the variable value in the language file does not get updated.

Is there a way , except for .on functions (e.g. .onInit), to dynamically update the old value of the variable in the language file with the new value.

That macro is not the way to change the value of MUI strings. You need to define MUI_TEXT_FINISH_SHOWREADME before you include the language file. See the MUI readme for more information.

You must set $ShowReadMeText before the finish page is set/shown, .onInit/.onGUIInit should do it, but if it's the finish page string, something in the section can do it too.

Thank you VERY much kichik!!!

I admire your promptness!!!

NSIS is a sensational piece of software!!! It keeps amazing me all the time!!!