internet transfer control problem

[John]

Hi

I am using the internet transfer control to access a site using the
following code;

Set objInet = Me.Inet1.Object ' <=== Inet1 in the Internet Transfer Control
strData = "some data here"
strHeaders = "Content-Type: application/x-www-form-urlencoded" & vbCrLf
objInet.Execute strURL, "POST", strData, strHeaders ' <=== This line does
not seem to work sometimes

It works fine on my development machine. Once I install the access app at
another client pc which is behind an MS ISA Server firewall, it does not
work. The control times out. I know that the pc concerned does not also have
a design time licence for the internet transfer control. Any ideas what the
problem could be?

Many Thanks

Regards