Visual Studio 2013 Settings Manager GetReadOnlySettingsStore throws Exception -

i'm writing visual studio extension , need list of property pages given category.

given "texteditor" following list returned.

• general
• alllanguages
• basic
• csharp
• etc.

the vs environment object dte makes easy page properties, provides no easy method pages.

vsenvironment.get_properties("texteditor", pagename); 

the values i'm after stored in registry visual studio provides settings store hoping me list.

i've set following:

var settingsmanager = new shellsettingsmanager(this); //serviceprovider.globalprovider var usersettingsstore = settingsmanager.getreadonlysettingsstore(settingsscope.usersettings); 

however getreadonlysettingsstore throws following exception.

the type 'microsoft.visualstudio.settings.settingsscope' exists in both 'microsoft.visualstudio.shell.12.0.dll' , 'microsoft.visualstudio.shell.11.0.dll' 

it looks mads kristensen has used successfully still can't tell what's wrong.

i avoid bypassing api's visual studio provides. has used settingsmanager or know method list?