NSIS nsi script error :- !insertmacro: macro named "SECTION_BEGIN" not found - nsis

Question

In nsi script with MUI2.nsh
Code:-
!macro SECTION_BEGIN
Section ""
Call zip2exe.SetOutPath
!macroend
!macro SECTION_END
SectionEnd
!macroend
But If I want to define two or more section then in that case how to incorporate SECTION_BEGIN part?
Section "Main Component" MainCom
#SectionIn RO # Just means if in component mode this is locked
Call zip2exe.SetOutPath
;Store installation folder in registry
WriteRegStr HKLM "Software\${ZIP2EXE_NAME}" "" $INSTDIR
;Registry information for add/remove programs
WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${ZIP2EXE_NAME}" "DisplayName" "${ZIP2EXE_NAME}"
WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${ZIP2EXE_NAME}" "NoRepair" 1
;Create optional start menu shortcut for uninstaller and Main component
;Create uninstaller
WriteUninstaller "${ZIP2EXE_NAME}_uninstaller.exe"
#!macroend
#!macro SECTION_END
SectionEnd
#!macroend
;--------------------------------
;Uninstaller Section
Section "Uninstall"
;Delete the appdata directory + files
RMDir /r "${INSTDIR_DATA}\*.*"
RMDir "${INSTDIR_DATA}"
;Delete Start Menu Shortcuts
Delete "$SMPROGRAMS\${ZIP2EXE_NAME}\*.*"
RmDir "$SMPROGRAMS\${ZIP2EXE_NAME}"
SectionEnd
#!macro SECTION_END
If we omit SECTION_BEGIN part then error comes. If we mention SECTION_BEGIN in both sections then also error comes.
What will be the solution to this problem?

Answer 1

If actually want to use Zip2Exe then you can modify parts of NSIS\Contrib\zip2exe\Base.nsh from
!macro SECTION_END
SectionEnd
!macroend
to something like this
!macro SECTION_END
SectionEnd
!if /FileExists "c:\mycustomzip2exefiles\mycustomsections.nsh"
!include "c:\mycustomzip2exefiles\mycustomsections.nsh"
!endif
!macroend
You can then put whatever code you want in c:\mycustomzip2exefiles\mycustomsections.nsh:
Section "My other section"
SetOutPath $InstDir
File "anotherfile.txt"
SectionEnd
However, Zip2Exe is mainly something you use to create simple self-extracting executables, you should not use it to create full installers.
When you create a real installer you don't use Zip2Exe, you use MakeNSIS and there is no such thing as a SECTION_BEGIN macro, you just add as many sections as you want to your .NSI file.
Example2.nsi contains a basic installer/uninstaller.