)
Call VIWD.VXD entry point with:
	DX = function number
	    0000h ???
		Return: CF clear
			AX = ???
	    0004h ???
		Return: CF clear
			DX = 0000h
	    0006h
		Return: CF clear
	    000Ah
		AX = ???
		Return: CF clear if successful
			CF set on error
	    000Ch
	    000Dh
	    000Eh
		Return: CF clear
	    000Fh
		Return: CF clear
	    0010h
	    0011h
	    0015h
		Return: CF clear if successful
			    AX = ???
			CF set on error
			    AX = ???
			DX = 0000h
	    0016h
	    0017h
		Return: CF clear if successful
			    AX = ???
			CF set on error
			    AX = ???
			DX = 0000h
	    0018h ???
		CX = ???
		Return: CF clear if successful
			    AX = 0000h
			CF set on error
	    else
		Return: CF set
SeeAlso: #02708,#02712