Hole Wizard/Toolbox

According to this SolidWorks doucumentation ​, when I use the API GetUserPreferenceStringValue(swUserPreferenceStringValue_e.swHoleWizardToolBoxFolder), I should get the toolbox folder.

Insted I'm getting a file (C:\SOLIDWORKS Data (5)\lang\english\swbrowser.sldedb).

How can I get the toolbox folder location ?

SolidworksApi macros