if len(b) > 0 {
			b = append(b, ' ')
		}
		b = appendEscapeArg(b, v)
	}
	return string(b)
}

// createEnvBlock converts an array of environment strings into
// the representation required by CreateProcess: a sequence of NUL
// terminated strings followed by a nil.
// Last bytes are two UCS-2 NULs, or four NUL bytes.
// If any string contains a NUL, it returns (nil, EINVAL).

	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

//sys	CancelIo(s Handle) (err error)
//sys	CancelIoEx(s Handle, o *Overlapped) (err error)

//sys	PostQueuedCompletionStatus(cphandle Handle, qty uint32, key uintptr, overlapped *Overlapped) (err error)
//sys	CancelIo(s Handle) (err error)
//sys	CancelIoEx(s Handle, o *Overlapped) (err error)

	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

		{"CreateDirectory", Func, 0},
		{"CreateFile", Func, 0},
		{"CreateFileMapping", Func, 0},
		{"CreateHardLink", Func, 4},
		{"CreateIoCompletionPort", Func, 0},
		{"CreatePipe", Func, 0},
		{"CreateProcess", Func, 0},
		{"CreateProcessAsUser", Func, 10},
		{"CreateSymbolicLink", Func, 4},
		{"CreateToolhelp32Snapshot", Func, 4},
		{"Credential", Type, 0},
		{"Credential.Gid", Field, 0},

pkg syscall (windows-386), func CreateIoCompletionPort(Handle, Handle, uint32, uint32) (Handle, error)
pkg syscall (windows-386), func CreatePipe(*Handle, *Handle, *SecurityAttributes, uint32) error
pkg syscall (windows-386), func CreateProcess(*uint16, *uint16, *SecurityAttributes, *SecurityAttributes, bool, uint32, *uint16, *uint16, *StartupInfo, *ProcessInformation) error
pkg syscall (windows-386), func CryptAcquireContext(*Handle, *uint16, *uint16, uint32, uint32) error