Get full qualified host name in WIX

In one of our install we need to know the full qualified computer name during installation. For that purpose I did create an custom action with a simple vbscript that simple get the computer name and domain name and create the full qualified string and set property FQDN accordingly.

<CustomAction Id="FindHostDomain" Script="vbscript" Return="check">
  Dim Info
  Set Info = CreateObject("AdSystemInfo")
  Dim InfoNT
  Set InfoNT = CreateObject("WinNTSystemInfo")
  Session.Property("FQDN") = lcase(InfoNT.ComputerName & "." & Info.DomainDNSName)

To execute this script and set FQDN so we can use it in our component’s add this to the install execution sequence.

  <Custom Action="FindHostDomain" Before="CostInitialize" >Not Installed</Custom>