@bubblehead712
I am using UFT GUI, and the dll referenced with DOTNetFactory is C# using Visual Studio 2013

I have never return a String array from dll to vbscript but here are couple ideas''

1. Since the return is string array VBS engine could not intrepid it. Recommend convert array to string delimited and convert in VBS.
2. Since the return is string array which is object. Have you declared the VBS object before assigning it a value?
Dim myArray()
3. VBScript returns all varilables as type variant. Have you tried to change the DLL return object array and not string array? For example:

public object[] testStringArray()
{
object[] hello = new object[3];
hello[0] = ''hi''; hello[1] = ''bye''; hello[2] = ''shy'';
return hello;
}

Option 3 came from article ''[Return string array with vbscript problem](https://community.ptc.com/t5/PTC-Mathcad-Questions/Return-string-array-with-vbscript-problem/m-p/224197/highlight/true)''