  Configuring to installed IP stack? 
 The Question is:
 
How do I know what is the active TCP/IP product for socket operation (such as:
 UCX , TCPWARE , MULTINET and so on). I develop a software (C language) that
 communicate via sockets with other computers. It runs on VAX &amp; ALPHA machines
 with OpenVMS from vers
ion 6.2 to current version. Some of the socket functions accept different
 values/structures/parameters - depending on the actual layer that supplys
 socket services.
 
I've been told that I may inspect the value of UCX$IPC_SHR logical name and:
1. If this does not exist - it means that this is UCX
2. In all other cases - the locial name will contain:
 
"xxxx:somename"   where xxxx is the required product.
 
I've searched Compaq on the web but I couldn't see any rule for that. Is there
 such rule? Is this the best way to get that information?
 
 
 The Answer is:
 
  The OpenVMS Wizard is not aware of a particular (and documented)
  rule for determining if (and if any, which in particular) IP stack
  is installed, beyond simple attempts to use the socket interface --
  most IP products attempt to be compatible both at the socket API and
  at the $qio API.
 
  Further, though only one IP stack can be running at a time, the
  OpenVMS Wizard might also assume that multiple IP stacks could be
  installed on the same system at the same time.
 
  Alternatively, ask the installer.
 
