Is there a way to clear empty section from an INI?

I checked up on all this with Qt Creator, calibre, KDE, KVIrc and a few other things; in all cases that I've tested it on, you can safely delete it all, it'll just create it again when you start it next. All it is is version numbers for the DLLs. Don't know why it creates them at all.

I think that I'll add in some sort of code to the PortableApps.com Launcher (test of John's increment due out presently) to clear up these sorts of Qt entries. They do follow a set standard which is convenient.

Here's the NSIS code that should get you through (needs LogicLib.nsh, Registry.nsh and FileFunc.nsh included). I'll implement the same idea for the PortableApps.com Launcher so that you can have a [Qt] section for such values - QtRegistryDLLsClean1=Qt Factory Cache 4.5\com.trolltech.Qt... . Actually thinking over it I think I'll try rewrite it to spider the whole thing and clean up any values. Ah, when you learn to understand some of these things (e.g. Java, Qt) you can actually make it pretty easy to make all such apps easy to do, rather than needing to solve it individually each time.

${For} $0 1 8
  ${Select} $0
    ${Case} 1
      StrCpy $1 "Qt Factory Cache 4.5\com.trolltech.Qt.QAccessibleFactoryInterface:"
    ${Case} 2
      StrCpy $1 "Qt Factory Cache 4.5\com.trolltech.Qt.QIconEngineFactoryInterface:"
    ${Case} 3
      StrCpy $1 "Qt Factory Cache 4.5\com.trolltech.Qt.QIconEngineFactoryInterfaceV2:"
    ${Case} 4
      StrCpy $1 "Qt Factory Cache 4.5\com.trolltech.Qt.QImageIOHandlerFactoryInterface:"
    ${Case} 5
      StrCpy $1 "Qt Factory Cache 4.5\com.trolltech.Qt.QSqlDriverFactoryInterface:"
    ${Case} 6
      StrCpy $1 "Qt Factory Cache 4.5\com.trolltech.Qt.QTextCodecFactoryInterface:"
    ${Case} 7
      StrCpy $1 "Qt Plugin Cache 4.5.debug"
    ${Case} 8
      StrCpy $1 "Qt Plugin Cache 4.5.false"
  ${EndSelect}

  ${registry::DeleteKey} "HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\$1\$EXEDIR" $R0
  StrCpy $2 $EXEDIR
  ${Do}
    ${GetParent} $2 $2
    ${registry::DeleteKeyEmpty} "HKEY_CURRENT_USER\Software\Trolltech\OrganizationDefaults\$1\$2" $R0
  ${LoopUntil} $2 == ""
${Next}

P.S. if you were really needing a way to clear empty sections in an INI file I could whip up such a function fairly easily.