Function PostComp
	StrCpy $Drive1 0 ; HomeDir space
	StrCpy $Drive2 0 ; AuxDir space
	StrCpy $Drive3 0 ; DataDir space
	MessageBox MB_OK "Clearing Two Flags"

	!insertmacro ClearSectionFlag -FLIGHTWEATHERDATA 1 ; Disable these hidden sections
	!insertmacro ClearSectionFlag -FLIGHTVPFDATA 1

	MessageBox MB_OK "Checking Home"

	!insertmacro SectionFlagIsSet HOME 1 +1 NoHome   ; Skip ahead if the section is not selected
	SectionGetSize HOME $R0
	IntOp $Drive1 $Drive1 + 1
NoHome:

	MessageBox MB_OK "Checking Data"
	!insertmacro SectionFlagIsSet DATA 1 +1 NoData
	SectionGetSize DATA $R0
	IntOp $Drive2 $Drive2 + 2
NoData:

	MessageBox MB_OK "Checking Weather"
	!insertmacro SectionFlagIsSet FLIGHTWEATHER 1 +1 NoWeather
	SectionGetSize FLIGHTWEATHER $R0
	IntOp $Drive1 $Drive1 + 4
	!insertmacro SetSectionFlag -FLIGHTWEATHERDATA 1
	SectionGetSize -FLIGHTWEATHERDATA $R0
	IntOp $Drive2 $Drive2 + 8
NoWeather:

	MessageBox MB_OK "Checking VPF"
	!insertmacro SectionFlagIsSet FLIGHTVPF 1 +1 NoVPF
	SectionGetSize FLIGHTVPF $R0
	IntOp $Drive1 $Drive1 + 16
	!insertmacro SetSectionFlag -FLIGHTVPFDATA 1
	SectionGetSize -FLIGHTVPFDATA $R0
	IntOp $Drive3 $Drive3 + 32
NoVPF:

	MessageBox MB_OK "Checking Help"
	!insertmacro SectionFlagIsSet HELP 1 +1 NoHelp
	SectionGetSize HELP $R0
	IntOp $Drive1 $Drive1 + 64
NoHelp:
	SectionSetSize DATA 0
	SectionSetSize HOME 0
	SectionSetSize FLIGHTWEATHER 0
	SectionSetSize FLIGHTWEATHERDATA 0
	SectionSetSize FLIGHTVPF 0
	SectionSetSize FLIGHTVPFDATA 0
	SectionSetSize HELP 0

	MessageBox MB_OK "Drive1: $Drive1"
	MessageBox MB_OK "Drive2: $Drive2"
	MessageBox MB_OK "Drive3: $Drive3"
FunctionEnd