VBA Compile error: on SysCmd (Sub or Function not defined)

I want to upload files to sharepoint passing the credentials. I saw this function on a post and it seems may work for me but when I compile it, I get Compile error on SysCmd. I'm not familiar with VBA, please advice, thanks for your help in advance.

Public Sub CopyToSharePoint()

On Error GoTo err_Copy

Dim xmlhttp
Dim sharepointUrl
Dim sharepointFileName
Dim tsIn
Dim sBody
Dim LobjXML As Object
Dim UserName As String
Dim pw As String
Dim RetVal
Dim i As Integer
Dim TotFiles As Integer
Dim Start As Date, Finish As Date
'Dim fso As New FileSystemObject 'Scripting.FileSystemObject
Dim fso As Object
Set fso = CreateObject("Scripting.FileSystemObject")
Dim fldr As Object 'Folder
Dim f As Object 'File

Set fldr = fso.GetFolder("c:\vba2sharepoint\")

UserName = "mysharepointusername@domain.com" 'DLookup("[Username]", "tbl_UserData")
pw = "mysharepointpassword" 'DLookup("[Password]", "tbl_UserData")
sharepointUrl = "https://mysite.sharepoint.com/sites/xyz-uat/_layouts/15/start.aspx#/a1docsuat/"

Set LobjXML = CreateObject("Microsoft.XMLHTTP")

TotFiles = fldr.Files.Count

For Each f In fldr.Files

 sharepointFileName = sharepointUrl & f.Name

    Set tsIn = f.OpenAsTextStream
    sBody = tsIn.ReadAll
    tsIn.Close

    Set xmlhttp = CreateObject("MSXML2.XMLHTTP.6.0")

    xmlhttp.Open "PUT", sharepointFileName, False, UserName, pw

    xmlhttp.Send sBody

  i = i + 1

  RetVal = SysCmd(acSysCmdSetStatus, "File " & i & " of " & TotFiles & " copied...")

Next f

   RetVal = SysCmd(acSysCmdClearStatus)

  Set LobjXML = Nothing

  Set fso = Nothing

err_Copy:

MsgBox Err & " " & Err.Description

If Err <> 0 Then
  MsgBox Err & " " & Err.Description
  Resume Next
End If

End Sub

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