Hello, as I am developing a VB6 application thta contains the following API declarations:

Code:
Private Declare Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" (ByVal pCaller As Long, ByVal szURL As String, ByVal szFileName As String, ByVal dwReserved As Long, ByVal lpfnCB As Long) As Long
Private Declare Function InternetOpen Lib "wininet.dll" Alias "InternetOpenA" (ByVal sAgent As String, ByVal lAccessType As Long, ByVal sProxyName As String, ByVal sProxyBypass As String, ByVal lFlags As Long) As Long
I was wondering whether I must make sure that urlmon and wininet are on the user's computer or I can take it for granted. In other words, are the two libraries above an integral part of Windows? If yes, since when have they been shipped with the OS?

TIA