diff --git a/Examples/one-section.nsi b/Examples/one-section.nsi
new file mode 100644
index 00000000..ab3a753b
--- /dev/null
+++ b/Examples/one-section.nsi
@@ -0,0 +1,79 @@
+Name example
+OutFile setup.exe
+
+ComponentText "please choose just one but the the default"
+
+Section !Required
+	SectionIn RO
+SectionEnd
+
+Section "optional #1" sec1
+SectionEnd
+
+Section "optional #2" sec2
+SectionEnd
+
+Section "optional #3" sec3
+SectionEnd
+
+Section "optional #4" sec4
+SectionEnd
+
+!define SECTION_OFF 0x7FFFFFFF
+
+Function .onInit
+	StrCpy $1 ${sec1} ; Gotta remember which section we are at now...
+	SectionGetFlags ${sec1} $0
+	IntOp $0 $0 | 0x80000000
+	SectionSetFlags ${sec1} $0
+
+	SectionGetFlags ${sec2} $0
+	IntOp $0 $0 & ${SECTION_OFF}
+	SectionSetFlags ${sec2} $0
+
+	SectionGetFlags ${sec3} $0
+	IntOp $0 $0 & ${SECTION_OFF}
+	SectionSetFlags ${sec3} $0
+
+	SectionGetFlags ${sec4} $0
+	IntOp $0 $0 & ${SECTION_OFF}
+	SectionSetFlags ${sec4} $0
+FunctionEnd
+
+Function .onSelChange
+	; Turn off old selected section
+	StrCmp $1 ${sec1} 0 +4
+		SectionGetFlags ${sec1} $0
+		IntOp $0 $0 & ${SECTION_OFF}
+		SectionSetFlags ${sec1} $0
+	StrCmp $1 ${sec2} 0 +4
+		SectionGetFlags ${sec2} $0
+		IntOp $0 $0 & ${SECTION_OFF}
+		SectionSetFlags ${sec2} $0
+	StrCmp $1 ${sec3} 0 +4
+		SectionGetFlags ${sec3} $0
+		IntOp $0 $0 & ${SECTION_OFF}
+		SectionSetFlags ${sec3} $0
+	StrCmp $1 ${sec4} 0 +4
+		SectionGetFlags ${sec4} $0
+		IntOp $0 $0 & ${SECTION_OFF}
+		SectionSetFlags ${sec4} $0
+
+	; Now remember the current selection
+	SectionGetFlags ${sec1} $0
+	IntOp $0 $0 & 0x80000000
+	IntCmp $0 0x80000000 0 +2 +2
+		StrCpy $1 ${sec1}
+	SectionGetFlags ${sec2} $0
+	IntOp $0 $0 & 0x80000000
+	IntCmp $0 0x80000000 0 +2 +2
+		StrCpy $1 ${sec2}
+	SectionGetFlags ${sec3} $0
+	IntOp $0 $0 & 0x80000000
+	IntCmp $0 0x80000000 0 +2 +2
+		StrCpy $1 ${sec3}
+	SectionGetFlags ${sec4} $0
+	IntOp $0 $0 & 0x80000000
+	IntCmp $0 0x80000000 0 +2 +2
+		StrCpy $1 ${sec4}
+FunctionEnd
\ No newline at end of file