I have an enum defined in managed code, e.g.:
public enum MyEnum
{
MyValue1,
MyValue2,
MyValue3
}
I have exposed a method which takes an array of MyEnum as an argument, e.g.:

public void MyMethod([In] ref MyEnum[] values)
{
...
}

And now I attempt to call this method from VB6 code as follows:
Dim myValues(0 To 2) As MyEnum
myValues(0) = MyEnum_MyValue1
myValues(1) = MyEnum_MyValue2
myValues(2) = MyEnum_MyValue3

Set obj = ...  ' Instantiate .NET class
obj.MyMethod myValues

When I do this, I get an error at the line "obj.MyMethod myValues" as follows:
 -2146233037 (80131533)
 Specified array was not of the expected type

Why is this and is there a way I can marshal an array of Enums?
The generated typelib looks like I would expect it to, i.e. the argument is  
[in] SAFEARRAY(MyEnum)* values