[EditorBrowsableAttribute(EditorBrowsableState.Never)]
[ObsoleteAttribute("Use System.Func instead")]
public delegate TRet dFunction<TRet, T1, T2, T3, T4>(
	T1 arg1,
	T2 arg2,
	T3 arg3,
	T4 arg4
)

<EditorBrowsableAttribute(EditorBrowsableState.Never)> _
<ObsoleteAttribute("Use System.Func instead")> _
Public Delegate Function dFunction(Of TRet, T1, T2, T3, T4) ( _
	arg1 As T1, _
	arg2 As T2, _
	arg3 As T3, _
	arg4 As T4 _
) As TRet

[EditorBrowsableAttribute(EditorBrowsableState::Never)]
[ObsoleteAttribute(L"Use System.Func instead")]
generic<typename TRet, typename T1, typename T2, typename T3, typename T4>
public delegate TRet dFunction(
	T1 arg1, 
	T2 arg2, 
	T3 arg3, 
	T4 arg4
)

[<EditorBrowsableAttribute(EditorBrowsableState.Never)>]
[<ObsoleteAttribute("Use System.Func instead")>]
type dFunction = 
    delegate of 
        arg1:'T1 * 
        arg2:'T2 * 
        arg3:'T3 * 
        arg4:'T4 -> 'TRet

JScript does not support generic types or methods.