Show the Windows Live Writer Preferences dialog box.
HRESULT ShowOptions([in] BSTR optionsPage );
optionsPage
Preferences page to pre-select (valid values are "preferences", “accounts”, "blogthis", “spelling”, “glossary”, "plugins", "webproxy", and "pings"). Defaults to "preferences" if null or an empty string is specified.
S_OK on success, otherwise an error HRESULT.