diff --git a/Examples/Memento.nsi b/Examples/Memento.nsi
new file mode 100644
index 00000000..6b2c24e2
--- /dev/null
+++ b/Examples/Memento.nsi
@@ -0,0 +1,77 @@
+!include LogicLib.nsh
+!include Memento.nsh
+
+Name Memento
+OutFile Memento.exe
+
+XPStyle on
+
+ShowInstDetails show
+
+Page components
+Page instfiles
+
+# settings
+
+!define MEMENTO_REGISTRY_ROOT HKLM
+!define MEMENTO_REGISTRY_KEY "Software\NSIS\Memento Test"
+
+# restore
+
+Function .onInit
+
+  ${If} ${Cmd} `MessageBox MB_YESNO "Would you like to load an example state?" IDYES`
+    
+	DeleteRegKey  HKLM "Software\NSIS\Memento Test"
+
+	WriteRegStr   HKLM "Software\NSIS\Memento Test" MementoSectionUsed ""
+	WriteRegDWORD HKLM "Software\NSIS\Memento Test" MementoSection_sec_horse   1
+	WriteRegDWORD HKLM "Software\NSIS\Memento Test" MementoSection_sec_chicken 1
+	WriteRegDWORD HKLM "Software\NSIS\Memento Test" MementoSection_sec_donkey  0
+	WriteRegDWORD HKLM "Software\NSIS\Memento Test" MementoSection_sec_croc    0
+
+  ${EndIf}
+
+  ${MementoSectionRestore}
+
+FunctionEnd
+
+# sections
+
+${MementoSection} horse sec_horse
+${MementoSectionEnd}
+
+${MementoSection} donkey sec_donkey
+${MementoSectionEnd}
+
+${MementoSection} chicken sec_chicken
+${MementoSectionEnd}
+
+SectionGroup /e group
+
+  SectionGroup /e group
+
+    ${MementoSection} croc sec_croc
+    ${MementoSectionEnd}
+
+    ${MementoSection} cow sec_cow
+    ${MementoSectionEnd}
+
+  SectionGroupEnd
+
+SectionGroupEnd
+
+${MementoUnselectedSection} dinosaur sec_dinosaur
+${MementoSectionEnd}
+
+# done...
+
+${MementoSectionDone}
+
+# save
+
+Function .onInstSuccess
+
+  ${MementoSectionSave}
+
+FunctionEnd
diff --git a/Examples/SConscript b/Examples/SConscript
index 71bd7637..2fa2a301 100644
--- a/Examples/SConscript
+++ b/Examples/SConscript
@@ -11,6 +11,7 @@ examples = Split("""
 	LogicLib.nsi
 	makensis.ini
 	makensis.nsi
+	Memento.nsi
 	one-section.nsi
 	primes.nsi
 	rtest.nsi
diff --git a/Examples/makensis.nsi b/Examples/makensis.nsi
index f4f2d08a..98d3f160 100644
--- a/Examples/makensis.nsi
+++ b/Examples/makensis.nsi
@@ -31,6 +31,7 @@ RequestExecutionLevel admin
 !include "MUI.nsh"
 !include "Sections.nsh"
 !include "LogicLib.nsh"
+!include "Memento.nsh"
 
 ;--------------------------------
 ;Definitions
@@ -45,6 +46,10 @@ RequestExecutionLevel admin
 Name "NSIS"
 Caption "NSIS ${VERSION} Setup"
 
+;Memento Settings
+!define MEMENTO_REGISTRY_ROOT HKLM
+!define MEMENTO_REGISTRY_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\NSIS"
+
 ;Interface Settings
 !define MUI_ABORTWARNING
 
@@ -97,7 +102,7 @@ Page custom PageReinstall PageLeaveReinstall
 ;--------------------------------
 ;Installer Sections
 
-Section "NSIS Core Files (required)" SecCore
+${MementoSection} "NSIS Core Files (required)" SecCore
 
   SetDetailsPrint textonly
   DetailPrint "Installing NSIS Core Files..."
@@ -142,6 +147,7 @@ Section "NSIS Core Files (required)" SecCore
   File ..\Include\WordFunc.nsh
   File ..\Include\WinVer.nsh
   File ..\Include\x64.nsh
+  File ..\Include\Memento.nsh
 
   SetOutPath $INSTDIR\Docs\StrFunc
   File ..\Docs\StrFunc\StrFunc.txt
@@ -203,9 +209,9 @@ Section "NSIS Core Files (required)" SecCore
 
   System::Call 'Shell32::SHChangeNotify(i ${SHCNE_ASSOCCHANGED}, i ${SHCNF_IDLIST}, i 0, i 0)'
 
-SectionEnd
+${MementoSectionEnd}
 
-Section "Script Examples" SecExample
+${MementoSection} "Script Examples" SecExample
 
   SetDetailsPrint textonly
   DetailPrint "Installing Script Examples..."
@@ -240,17 +246,17 @@ Section "Script Examples" SecExample
   File ..\Examples\WordFunc.nsi
   File ..\Examples\WordFunc.ini
   File ..\Examples\WordFuncTest.nsi
-SectionEnd
+${MementoSectionEnd}
 
 !ifndef NO_STARTMENUSHORTCUTS
-Section "Start Menu and Desktop Shortcuts" SecShortcuts
+${MementoSection} "Start Menu and Desktop Shortcuts" SecShortcuts
 
   SetDetailsPrint textonly
   DetailPrint "Installing Start Menu and Desktop Shortcuts..."
   SetDetailsPrint listonly
 
 !else
-Section "Desktop Shortcut" SecShortcuts
+${MementoSection} "Desktop Shortcut" SecShortcuts
 
   SetDetailsPrint textonly
   DetailPrint "Installing Desktop Shortcut..."
@@ -274,11 +280,11 @@ Section "Desktop Shortcut" SecShortcuts
 
   CreateShortCut "$DESKTOP\Nullsoft Install System.lnk" "$INSTDIR\NSIS.exe"
 
-SectionEnd
+${MementoSectionEnd}
 
 SectionGroup "User Interfaces" SecInterfaces
 
-Section "Modern User Interface" SecInterfacesModernUI
+${MementoSection} "Modern User Interface" SecInterfacesModernUI
 
   SetDetailsPrint textonly
   DetailPrint "Installing User Interfaces | Modern User Interface..."
@@ -323,9 +329,9 @@ Section "Modern User Interface" SecInterfacesModernUI
   SetOutPath $INSTDIR\Include
   File "..\Include\MUI.nsh"
 
-SectionEnd
+${MementoSectionEnd}
 
-Section "Default User Interface" SecInterfacesDefaultUI
+${MementoSection} "Default User Interface" SecInterfacesDefaultUI
 
   SetDetailsPrint textonly
   DetailPrint "Installing User Interfaces | Default User Interface..."
@@ -336,9 +342,9 @@ Section "Default User Interface" SecInterfacesDefaultUI
   SetOutPath "$INSTDIR\Contrib\UIs"
   File "..\Contrib\UIs\default.exe"
 
-SectionEnd
+${MementoSectionEnd}
 
-Section "Tiny User Interface" SecInterfacesTinyUI
+${MementoSection} "Tiny User Interface" SecInterfacesTinyUI
 
   SetDetailsPrint textonly
   DetailPrint "Installing User Interfaces | Tiny User Interface..."
@@ -349,11 +355,11 @@ Section "Tiny User Interface" SecInterfacesTinyUI
   SetOutPath "$INSTDIR\Contrib\UIs"
   File "..\Contrib\UIs\sdbarker_tiny.exe"
 
-SectionEnd
+${MementoSectionEnd}
 
 SectionGroupEnd
 
-Section "Graphics" SecGraphics
+${MementoSection} "Graphics" SecGraphics
 
   SetDetailsPrint textonly
   DetailPrint "Installing Graphics..."
@@ -367,9 +373,9 @@ Section "Graphics" SecGraphics
   SetOutPath $INSTDIR\Contrib\Graphics
   File /r "..\Contrib\Graphics\*.ico"
   File /r "..\Contrib\Graphics\*.bmp"
-SectionEnd
+${MementoSectionEnd}
 
-Section "Language Files" SecLangFiles
+${MementoSection} "Language Files" SecLangFiles
 
   SetDetailsPrint textonly
   DetailPrint "Installing Language Files..."
@@ -389,11 +395,11 @@ Section "Language Files" SecLangFiles
     File "..\Contrib\Modern UI\Language files\*.nsh"
   nomui:
 
-SectionEnd
+${MementoSectionEnd}
 
 SectionGroup "Tools" SecTools
 
-Section "Zip2Exe" SecToolsZ2E
+${MementoSection} "Zip2Exe" SecToolsZ2E
 
   SetDetailsPrint textonly
   DetailPrint "Installing Tools | Zip2Exe..."
@@ -408,13 +414,13 @@ Section "Zip2Exe" SecToolsZ2E
   File ..\Contrib\zip2exe\Modern.nsh
   File ..\Contrib\zip2exe\Classic.nsh
 
-SectionEnd
+${MementoSectionEnd}
 
 SectionGroupEnd
 
 SectionGroup "Plug-ins" SecPluginsPlugins
 
-Section "Banner" SecPluginsBanner
+${MementoSection} "Banner" SecPluginsBanner
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | Banner..."
@@ -428,9 +434,9 @@ Section "Banner" SecPluginsBanner
   File ..\Docs\Banner\Readme.txt
   SetOutPath $INSTDIR\Examples\Banner
   File ..\Examples\Banner\Example.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "Language DLL" SecPluginsLangDLL
+${MementoSection} "Language DLL" SecPluginsLangDLL
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | Language DLL..."
@@ -439,9 +445,9 @@ Section "Language DLL" SecPluginsLangDLL
   SectionIn 1
   SetOutPath $INSTDIR\Plugins
   File ..\Plugins\LangDLL.dll
-SectionEnd
+${MementoSectionEnd}
 
-Section "nsExec" SecPluginsnsExec
+${MementoSection} "nsExec" SecPluginsnsExec
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | nsExec..."
@@ -455,9 +461,9 @@ Section "nsExec" SecPluginsnsExec
   File ..\Docs\nsExec\nsExec.txt
   SetOutPath $INSTDIR\Examples\nsExec
   File ..\Examples\nsExec\test.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "Splash" SecPluginsSplash
+${MementoSection} "Splash" SecPluginsSplash
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | Splash..."
@@ -471,9 +477,9 @@ Section "Splash" SecPluginsSplash
   File ..\Docs\Splash\splash.txt
   SetOutPath $INSTDIR\Examples\Splash
   File ..\Examples\Splash\Example.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "AdvSplash" SecPluginsSplashT
+${MementoSection} "AdvSplash" SecPluginsSplashT
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | AdvSplash..."
@@ -487,9 +493,9 @@ Section "AdvSplash" SecPluginsSplashT
   File ..\Docs\AdvSplash\advsplash.txt
   SetOutPath $INSTDIR\Examples\AdvSplash
   File ..\Examples\AdvSplash\Example.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "BgImage" SecPluginsBgImage
+${MementoSection} "BgImage" SecPluginsBgImage
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | BgImage..."
@@ -503,9 +509,9 @@ Section "BgImage" SecPluginsBgImage
   File ..\Docs\BgImage\BgImage.txt
   SetOutPath $INSTDIR\Examples\BgImage
   File ..\Examples\BgImage\Example.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "InstallOptions" SecPluginsIO
+${MementoSection} "InstallOptions" SecPluginsIO
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | InstallOptions..."
@@ -527,9 +533,9 @@ Section "InstallOptions" SecPluginsIO
   File ..\Examples\InstallOptions\testlink.nsi
   File ..\Examples\InstallOptions\testnotify.ini
   File ..\Examples\InstallOptions\testnotify.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "Math" SecPluginsMath
+${MementoSection} "Math" SecPluginsMath
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | Math..."
@@ -547,9 +553,9 @@ Section "Math" SecPluginsMath
   File ..\Examples\Math\mathtest.nsi
   File ..\Examples\Math\mathtest.ini
 
-SectionEnd
+${MementoSectionEnd}
 
-Section "NSISdl" SecPluginsNSISDL
+${MementoSection} "NSISdl" SecPluginsNSISDL
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | NSISdl..."
@@ -562,9 +568,9 @@ Section "NSISdl" SecPluginsNSISDL
   SetOutPath $INSTDIR\Docs\NSISdl
   File ..\Docs\NSISdl\ReadMe.txt
   File ..\Docs\NSISdl\License.txt
-SectionEnd
+${MementoSectionEnd}
 
-Section "System" SecPluginsSystem
+${MementoSection} "System" SecPluginsSystem
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | System..."
@@ -582,9 +588,9 @@ Section "System" SecPluginsSystem
   File ..\Examples\System\SysFunc.nsh
   File ..\Examples\System\System.nsh
   File ..\Examples\System\System.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "StartMenu" SecPluginsStartMenu
+${MementoSection} "StartMenu" SecPluginsStartMenu
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | StartMenu..."
@@ -598,9 +604,9 @@ Section "StartMenu" SecPluginsStartMenu
   File ..\Docs\StartMenu\Readme.txt
   SetOutPath $INSTDIR\Examples\StartMenu
   File ..\Examples\StartMenu\Example.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "UserInfo" SecPluginsUserInfo
+${MementoSection} "UserInfo" SecPluginsUserInfo
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | UserInfo..."
@@ -612,9 +618,9 @@ Section "UserInfo" SecPluginsUserInfo
   File ..\Plugins\UserInfo.dll
   SetOutPath $INSTDIR\Examples\UserInfo
   File ..\Examples\UserInfo\UserInfo.nsi
-SectionEnd
+${MementoSectionEnd}
 
-Section "Dialer" SecPluginsDialer
+${MementoSection} "Dialer" SecPluginsDialer
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | Dialer..."
@@ -626,9 +632,9 @@ Section "Dialer" SecPluginsDialer
   File ..\Plugins\Dialer.dll
   SetOutPath $INSTDIR\Docs\Dialer
   File ..\Docs\Dialer\Dialer.txt
-SectionEnd
+${MementoSectionEnd}
 
-Section "VPatch" SecPluginsVPatch
+${MementoSection} "VPatch" SecPluginsVPatch
 
   SetDetailsPrint textonly
   DetailPrint "Installing Plug-ins | VPatch..."
@@ -649,7 +655,9 @@ Section "VPatch" SecPluginsVPatch
   File ..\Bin\GenPat.exe
   SetOutPath $INSTDIR\Include
   File ..\Include\VPatchLib.nsh
-SectionEnd
+${MementoSectionEnd}
+
+${MementoSectionDone}
 
 SectionGroupEnd
 
@@ -797,6 +805,8 @@ Section -post
 
   WriteUninstaller $INSTDIR\uninst-nsis.exe
 
+  ${MementoSectionSave}
+
   SetDetailsPrint both
 
 SectionEnd
@@ -836,14 +846,20 @@ SectionEnd
 ;--------------------------------
 ;Installer Functions
 
-!ifdef VER_MAJOR & VER_MINOR & VER_REVISION & VER_BUILD
-
 Function .onInit
 
+!ifdef VER_MAJOR & VER_MINOR & VER_REVISION & VER_BUILD
+
   !insertmacro MUI_INSTALLOPTIONS_EXTRACT "makensis.ini"
+ 
+!endif
+  
+  ${MementoSectionRestore}
 
 FunctionEnd
 
+!ifdef VER_MAJOR & VER_MINOR & VER_REVISION & VER_BUILD
+
 Function PageReinstall
 
   ReadRegStr $R0 HKLM "Software\NSIS" ""
diff --git a/Include/Memento.nsh b/Include/Memento.nsh
new file mode 100644
index 00000000..ea04f706
--- /dev/null
+++ b/Include/Memento.nsh
@@ -0,0 +1,522 @@
+!verbose push
+!verbose 3
+
+!include LogicLib.nsh
+!include Sections.nsh
+
+!ifndef ___MEMENTO_NSH___
+!define ___MEMENTO_NSH___
+
+#####################################
+### Memento                       ###
+#####################################
+
+/*
+
+Memento is a set of macros that allow installers to remember user selection
+across separate runs of the installer. Currently, it can remember the state
+of sections and mark new sections as bold. In the future, it'll integrate
+InstallOptions and maybe even the Modern UI.
+
+A usage example can be found in `Examples\Memento.nsi`.
+
+*/
+
+#####################################
+### Usage Instructions            ###
+#####################################
+
+/*
+
+1. Declare usage of Memento by including Memento.nsh at the top of the script.
+
+      !include Memento.nsh
+
+2. Define MEMENTO_REGISTRY_ROOT and MEMENTO_REGISTRY_KEY with the a registry key
+   where sections' state should be saved.
+
+      !define MEMENTO_REGISTRY_ROOT HKLM
+      !define MEMENTO_REGISTRY_KEY \
+                Software\Microsoft\Windows\CurrentVersion\Uninstall\MyProgram
+
+3. Replace Section with ${MementoSection} and SectionEnd with ${MementoSection}
+   for sections that whose state should be remembered by Memento.
+
+   For sections that should be unselected by default, use ${MementoSection}'s
+   brother - ${MementoUnselectedSection}.
+
+   Sections that don't already have an identifier must be assigned one.
+
+   Section identifiers must stay the same across different versions of the
+   installer or their state will be forgotten.
+
+4. Add a call to ${MementoSectionRestore} to .onInit to restore the state
+   of all sections from the registry.
+
+      Function .onInit
+
+        ${MementoSectionRestore}
+
+      FunctionEnd
+
+5. Add a call to ${MementoSectionSave} to .onInstSuccess to save the state
+   of all sections to the registry.
+
+      Function .onInstSuccess
+
+        ${MementoSectionSave}
+
+      FunctionEnd
+
+6. Tattoo the location of the chosen registry key on your arm.
+
+*/
+
+#####################################
+### User API                      ###
+#####################################
+
+;
+; ${MementoSection}
+;
+;   Defines a section whose state is remembered by Memento.
+;
+;   Usage is similar to Section.
+;
+;     ${MementoSection} "name" "some_id"
+;
+
+!define MementoSection "!insertmacro MementoSection"
+
+;
+; ${MementoSectionEnd}
+;
+;   Ends a section previously opened using ${MementoSection}.
+;
+;   Usage is similar to SectionEnd.
+;
+;     ${MementoSection} "name" "some_id"
+;        # some code...
+;     ${MementoSectionEnd}
+;
+
+;
+; ${MementoUnselectedSection}
+;
+;   Defines a section whose state is remembered by Memento and is
+;   unselected by default.
+;
+;   Usage is similar to Section with the /o switch.
+;
+;     ${MementoUnselectedSection} "name" "some_id"
+;
+
+!define MementoUnselectedSection "!insertmacro MementoUnselectedSection"
+
+;
+; ${MementoSectionEnd}
+;
+;   Ends a section previously opened using ${MementoSection}.
+;
+;   Usage is similar to SectionEnd.
+;
+;     ${MementoSection} "name" "some_id"
+;        # some code...
+;     ${MementoSectionEnd}
+;
+
+!define MementoSectionEnd "!insertmacro MementoSectionEnd"
+
+;
+; ${MementoSectionDone}
+;
+;   Used after all ${MementoSection} have been set.
+;
+;     ${MementoSection} "name1" "some_id1"
+;        # some code...
+;     ${MementoSectionEnd}
+;
+;     ${MementoSection} "name2" "some_id2"
+;        # some code...
+;     ${MementoSectionEnd}
+;
+;     ${MementoSection} "name3" "some_id3"
+;        # some code...
+;     ${MementoSectionEnd}
+;
+;     ${MementoSectionDone}
+;
+
+!define MementoSectionDone "!insertmacro MementoSectionDone"
+
+;
+; ${MementoSectionRestore}
+;
+;   Restores the state of all Memento sections from the registry.
+;
+;   Commonly used in .onInit.
+;
+;     Function .onInit
+;
+;       ${MementoSectionRestore}
+;
+;     FunctionEnd
+;
+
+!define MementoSectionRestore "!insertmacro MementoSectionRestore"
+
+;
+; ${MementoSectionSave}
+;
+;   Saves the state of all Memento sections to the registry.
+;
+;   Commonly used in .onInstSuccess.
+;
+;     Function .onInstSuccess
+;
+;       ${MementoSectionSave}
+;
+;     FunctionEnd
+;
+
+!define MementoSectionSave "!insertmacro MementoSectionSave"
+
+
+#####################################
+### Internal Defines              ###
+#####################################
+
+!define __MementoSectionIndex 1
+
+#####################################
+### Internal Macros               ###
+#####################################
+
+!macro __MementoCheckSettings
+
+  !ifndef MEMENTO_REGISTRY_ROOT | MEMENTO_REGISTRY_KEY
+
+    !error "MEMENTO_REGISTRY_ROOT and MEMENTO_REGISTRY_KEY must be defined before using any of Memento's macros"
+
+  !endif
+
+!macroend
+
+!macro __MementoSection flags name id
+
+  !insertmacro __MementoCheckSettings
+
+  !ifndef __MementoSectionIndex
+
+    !error "MementoSectionDone already used!"
+
+  !endif
+
+  !define __MementoSectionLastSectionId `${id}`
+
+  !verbose pop
+
+  Section ${flags} `${name}` `${id}`
+
+  !verbose push
+  !verbose 3
+
+!macroend
+
+#####################################
+### User Macros                   ###
+#####################################
+
+!macro MementoSection name id
+
+  !verbose push
+  !verbose 3
+
+  !insertmacro __MementoSection "" `${name}` `${id}`
+
+  !verbose pop
+
+!macroend
+
+!macro MementoUnselectedSection name id
+
+  !verbose push
+  !verbose 3
+
+  !insertmacro __MementoSection /o `${name}` `${id}`
+
+  !define __MementoSectionUnselected
+
+  !verbose pop
+
+!macroend
+
+!macro MementoSectionEnd
+
+  SectionEnd
+
+  !verbose push
+  !verbose 3
+
+  !insertmacro __MementoCheckSettings
+
+  !ifndef __MementoSectionIndex
+
+    !error "MementoSectionDone already used!"
+
+  !endif
+
+  !define /MATH __MementoSectionIndexNext \
+      ${__MementoSectionIndex} + 1
+
+  Function __MementoSectionMarkNew${__MementoSectionIndex}
+
+    ClearErrors
+    ReadRegDWORD $0 ${MEMENTO_REGISTRY_ROOT} `${MEMENTO_REGISTRY_KEY}` `MementoSection_${__MementoSectionLastSectionId}`
+
+    ${If} ${Errors}
+
+      !insertmacro SetSectionFlag `${${__MementoSectionLastSectionId}}` ${SF_BOLD}
+
+    ${EndIf}
+
+    GetFunctionAddress $0 __MementoSectionMarkNew${__MementoSectionIndexNext}
+    Goto $0
+
+  FunctionEnd
+
+  Function __MementoSectionRestoreStatus${__MementoSectionIndex}
+
+    ClearErrors
+    ReadRegDWORD $0 ${MEMENTO_REGISTRY_ROOT} `${MEMENTO_REGISTRY_KEY}` `MementoSection_${__MementoSectionLastSectionId}`
+
+    !ifndef __MementoSectionUnselected
+
+      ${If} ${Errors}
+      ${OrIf} $0 != 0
+
+        !insertmacro SelectSection `${${__MementoSectionLastSectionId}}`
+
+      ${Else}
+
+        !insertmacro UnselectSection `${${__MementoSectionLastSectionId}}`
+
+      ${EndIf}
+
+    !else
+
+      !undef __MementoSectionUnselected
+
+      ${If} ${Errors}
+      ${OrIf} $0 == 0
+
+        !insertmacro UnselectSection `${${__MementoSectionLastSectionId}}`
+
+      ${Else}
+
+        !insertmacro SelectSection `${${__MementoSectionLastSectionId}}`
+
+      ${EndIf}
+
+    !endif
+
+    GetFunctionAddress $0 __MementoSectionRestoreStatus${__MementoSectionIndexNext}
+    Goto $0
+
+  FunctionEnd
+
+  Function __MementoSectionSaveStatus${__MementoSectionIndex}
+
+    ${If} ${SectionIsSelected} `${${__MementoSectionLastSectionId}}`
+
+      WriteRegDWORD ${MEMENTO_REGISTRY_ROOT} `${MEMENTO_REGISTRY_KEY}` `MementoSection_${__MementoSectionLastSectionId}` 1
+
+    ${Else}
+
+      WriteRegDWORD ${MEMENTO_REGISTRY_ROOT} `${MEMENTO_REGISTRY_KEY}` `MementoSection_${__MementoSectionLastSectionId}` 0
+
+    ${EndIf}
+
+    GetFunctionAddress $0 __MementoSectionSaveStatus${__MementoSectionIndexNext}
+    Goto $0
+
+  FunctionEnd
+
+  !undef __MementoSectionIndex
+  !define __MementoSectionIndex ${__MementoSectionIndexNext}
+  !undef __MementoSectionIndexNext
+
+  !undef __MementoSectionLastSectionId
+
+  !verbose pop
+
+!macroend
+
+!macro MementoSectionDone
+
+  !verbose push
+  !verbose 3
+
+  !insertmacro __MementoCheckSettings
+
+  Function __MementoSectionMarkNew${__MementoSectionIndex}
+  FunctionEnd
+
+  Function __MementoSectionRestoreStatus${__MementoSectionIndex}
+  FunctionEnd
+
+  Function __MementoSectionSaveStatus${__MementoSectionIndex}
+  FunctionEnd
+
+  !undef __MementoSectionIndex
+
+  !verbose pop
+
+!macroend
+
+!macro MementoSectionRestore
+
+  !verbose push
+  !verbose 3
+
+  !insertmacro __MementoCheckSettings
+
+  Push $0
+  Push $1
+  Push $2
+  Push $3
+
+    # check for first usage
+
+    ClearErrors
+
+    ReadRegStr $0 ${MEMENTO_REGISTRY_ROOT} `${MEMENTO_REGISTRY_KEY}` MementoSectionUsed
+
+    ${If} ${Errors}
+
+      # use script defaults on first run
+      Return
+
+    ${EndIf}
+
+    # mark new components in bold
+    
+    Call __MementoSectionMarkNew1
+
+    # mark section groups in bold
+
+    StrCpy $0 0
+    StrCpy $1 ""
+    StrCpy $2 ""
+    StrCpy $3 ""
+
+    loop:
+
+      ClearErrors
+
+      ${If} ${SectionIsBold} $0
+
+        ${If} $1 != ""
+
+          !insertmacro SetSectionFlag $1 ${SF_BOLD}
+
+        ${EndIf}
+
+        ${If} $2 != ""
+
+          !insertmacro SetSectionFlag $2 ${SF_BOLD}
+
+        ${EndIf}
+
+        ${If} $3 != ""
+
+          !insertmacro SetSectionFlag $3 ${SF_BOLD}
+
+        ${EndIf}
+
+      ${ElseIf} ${Errors}
+
+        Goto done
+
+      ${EndIf}
+
+      ${If} ${SectionIsSectionGroup} $0
+
+        ${If} $1 == ""
+
+          StrCpy $1 $0
+
+        ${ElseIf} $2 == ""
+
+          StrCpy $2 $0
+
+        ${ElseIf} $3 == ""
+
+          StrCpy $3 $0
+
+        ${EndIf}
+
+      ${EndIf}
+
+      ${If} ${SectionIsSectionGroupEnd} $0
+
+        ${If} $3 != ""
+
+          StrCpy $3 ""
+
+        ${ElseIf} $2 != ""
+
+          StrCpy $2 ""
+
+        ${ElseIf} $1 != ""
+
+          StrCpy $1 ""
+
+        ${EndIf}
+
+      ${EndIf}
+
+      IntOp $0 $0 + 1
+
+    Goto loop
+    done:
+
+    # restore sections' status
+
+    Call __MementoSectionRestoreStatus1
+
+  # all done
+
+  Pop $3
+  Pop $2
+  Pop $1
+  Pop $0
+
+  !verbose pop
+
+!macroend
+
+!macro MementoSectionSave
+
+  !verbose push
+  !verbose 3
+
+  !insertmacro __MementoCheckSettings
+
+  Push $0
+
+    WriteRegStr ${MEMENTO_REGISTRY_ROOT} `${MEMENTO_REGISTRY_KEY}` MementoSectionUsed ""
+  
+    Call __MementoSectionSaveStatus1
+
+  Pop $0
+
+  !verbose pop
+
+!macroend
+
+
+
+!endif # ___MEMENTO_NSH___
+
+!verbose pop
diff --git a/Include/SConscript b/Include/SConscript
index 11b87949..e5d09e9f 100644
--- a/Include/SConscript
+++ b/Include/SConscript
@@ -3,6 +3,7 @@ includes = Split("""
 	FileFunc.nsh
 	Library.nsh
 	LogicLib.nsh
+	Memento.nsh
 	MUI.nsh
 	Sections.nsh
 	StrFunc.nsh