Accessing LDAP using VB.NET

Option Explicit On
Imports System.DirectoryServices

Public Function GetLDAPUsers(ByVal ldapServerName As String, ByVal pFindWhat As String) As ArrayList
Dim oSearcher As New DirectorySearcher
Dim oResults As SearchResultCollection
Dim oResult As SearchResult
Dim RetArray As New ArrayList
Dim mCount As Integer
Dim mIdx As Integer
Dim mLDAPRecord As String

Dim ResultFields() As String = {"securityEquals", "cn"}

Try
With oSearcher
.SearchRoot = New DirectoryEntry("LDAP://" & ldapServerName & _
"/dc=lippogeneral,dc=com")
.PropertiesToLoad.AddRange(ResultFields)
.Filter = "cn=" & pFindWhat & "*"
oResults = .FindAll()
End With

mCount = oResults.Count
If mCount > 0 Then
For Each oResult In oResults
mLDAPRecord = oResult.GetDirectoryEntry().Properties("cn").Value & " " & oResult.GetDirectoryEntry().Properties("mail").Value
RetArray.Add(mLDAPRecord)
Next
End If
Catch e As Exception

MsgBox("Error is " & e.Message)
Return RetArray

End Try

Return RetArray

End Function