Non-zero based arrays are not CLS compliant:

CLS Rule 14: Arrays elements must have a CLS-compliant type, a fixed number
of dimensions, and all dimensions of the array must have zero lower bounds.
While the abstract type System.Array is considered CLS-compliant it does
have types that inherit from it but are not CLS-compliant.

However, they can be created. From an example by PhilWeber:

Dim arr(3 To 5) As Integer

becomes:

Dim arr As Array = System.Array.CreateInstance(GetType(Integer), _ New Integer() {5}, New Integer() {3})

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