void SetExpandEnvVars(bool bDoIt = TRUE) { m_bExpandEnvVars = bDoIt; }
// does expansion only if needed
wxString ExpandEnvVars(const wxString& str) const
void SetExpandEnvVars(bool bDoIt = TRUE) { m_bExpandEnvVars = bDoIt; }
// does expansion only if needed
wxString ExpandEnvVars(const wxString& str) const