pub unsafe extern "system" fn PrjStartVirtualizing(
    virtualizationrootpath: PCWSTR,
    callbacks: *const PRJ_CALLBACKS,
    instancecontext: *const c_void,
    options: *const PRJ_STARTVIRTUALIZING_OPTIONS,
    namespacevirtualizationcontext: *mut PRJ_NAMESPACE_VIRTUALIZATION_CONTEXT,
) -> HRESULT