Need reference library acroexch.dll I need this to do some automation for Excel to PDF. What product is this file in or where can I get it?

Do know what the name of the reference library is? When I'm in Excel's Visual Basic Editor and scrolling through the reference library I have checked every box that says Adobe, Acro, or PDF and it still doesn't work. and I don't know why. Below is the code.

Sub ReadAdobeFields()

    ROWnum = 1

    Dim AcrobatApplication As Acrobat.CAcroApp
    Dim AcrobatDocument  As Acrobat.CAcroAVDoc
    Dim Fcount As Long
    Dim FieldName As String
   
    On Error Resume Next
    Set AcrobatApplication = CreatObject("AcroExch.App")   '<----- this is where it messes up it says "SUB or FUNCTION is not defined". It's because I don't have the correct reference library
    Set AcrobatDocument = CreatObject("AcroExh.AVDoc")
   
    If AcrobatDocument.Open(Range("C:\288701\Desktop\Test.pdf"), "") Then
        AcrobatApplication.Show
        Set AcroForm = CreateObject("AFormAut.App")
        Set Fields = AcroForm.Fields
        Fcount = Fields.Count
       
        For Each Fielf In Fields
            FieldName = Fields.Name
           
            ActiveSheet.Range("B" & ROWnum) = Field.Name
            ActiveSheet.Range("C" & ROWnum) = Field.Value
            ActiveSheet.Range("D" & ROWnum) = Field.Style
        Next
       
    End If

End Sub

When I'm checking these boxes what is the name?

Any help you can give would be very helpful? Thanks!