// process. If inheritExisting is true, then this environment also inherits the
// environment of the current process.
func (token Token) Environ(inheritExisting bool) (env []string, err error) {
	var block *uint16
	err = CreateEnvironmentBlock(&block, token, inheritExisting)
	if err != nil {
		return nil, err
	}
	defer DestroyEnvironmentBlock(block)
	size := unsafe.Sizeof(*block)
	for *block != 0 {
		// find NUL terminator

// will be sourced from syscall.Environ().
func Default(sys *syscall.SysProcAttr) (env []string, err error) {
	if sys == nil || sys.Token == 0 {
		return syscall.Environ(), nil
	}
	var blockp *uint16
	err = windows.CreateEnvironmentBlock(&blockp, sys.Token, false)
	if err != nil {
		return nil, err
	}
	defer windows.DestroyEnvironmentBlock(blockp)

	const size = unsafe.Sizeof(*blockp)