* include/winbase.h [_WIN32_WINNT >= 0x0500] (GetComputerNameEx[AW],

	* include/winbase.h [_WIN32_WINNT >= 0x0500] (GetComputerNameEx[AW],
	GetProcessIoCounters): Add functions.

	* include/winbase.h [_WIN32_WINNT >= 0x0500] (COMPUTER_NAME_FORMAT):
	Move around, needed by GetComputerNameEx.

	* include/winbase.h [_WIN32_WINNT >= 0x0501] (FindActCtxSectionGuid,
	FindActCtxSectionString[AW], GetCurrentActCtx, GetNativeSystemInfo):
	Add functions.

	* include/winbase.h [_WIN32_WINNT >= 0x0501]
	(ACTCTX_SECTION_KEYED_DATA): Add structure.

	* include/winbase.h [_WIN32_WINNT >= 0x0502] (GetDllDirectory[AW],
	GetFirmwareEnvironmentVariable[AW], GetProcessHandleCount,
	GetProcessId, GetSystemRegistryQuota): Add functions, available on
	Windows XP SP1 and better.

	* include/winnt.h [_WIN32_WINNT >= 0x0501]
	(ACTIVATION_CONTEXT_SECTION_ASSEMBLY_INFORMATION,
	ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION,
	ACTIVATION_CONTEXT_SECTION_WINDOW_CLASS_REDIRECTION,
	ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION,
	ACTIVATION_CONTEXT_SECTION_COM_INTERFACE_REDIRECTION,
	ACTIVATION_CONTEXT_SECTION_COM_TYPE_LIBRARY_REDIRECTION,
	ACTIVATION_CONTEXT_SECTION_COM_PROGID_REDIRECTION,
	ACTIVATION_CONTEXT_SECTION_CLR_SURROGATES): Add constants.

	* lib/user32.def (FindActCtxSectionGuid, FindActCtxSectionString[AW],
	GetComputerNameEx[AW], GetCurrentActCtx, GetDllDirectory[AW],
	GetFirmwareEnvironmentVariable[AW], GetModuleHandleEx[AW],
	GetNativeSystemInfo, GetProcessHandleCount, GetProcessIoCounters):
	Add functions.