ASP Code to Get file causes server to lockup

I use code below to GET and show links from a remote site.
Everything works well when the remote site is up.
If the remote site fails to respond, it nearly "locks up" the server running the code below.

I need a method to time out this get after 5 seconds.

Code is as follows:

REMOTE_FILE_URL="http://www.domain.com/page-links.htm"
Dim objXML, strContents, arrLines
Dim x
Set objXML=Server.CreateObject("Microsoft.XMLHTTP")
objXML.Open "GET", REMOTE_FILE_URL, False
objXML.Send
strContents=objXML.ResponseText
Set objXML=Nothing
xvar=unescape(strContents)
Response.Write xvar

Many Thanks in Advance, Greg