%META:TOPICINFO{author="ChrisBartram" date="1170386055" format="1.1" version="1.2"}%
%META:TOPICPARENT{name="Hp3000ProgrammingFeatures"}%
---+ [[Hp3000GetMpeVersion][How can I programatically tell what HP3000 MPE version I'm on?]]

The variable HPCWD exists on 4.5 and later 

The command NEWLINK exists on 5.0 and later (there must be a better way...) 

listfile ;seleq=[object=hfsdir] 'hfsdir' may not be supported on 4.5, definitely isn't on 4.0. 

NOTE: 

On the Express 3 release of 5.0 (June?) there are 2 new CI variables: HPOSVERSION and HPRELEASE version. These contain the os and release ids seen in the :SHOWME banner. Eg. 

<pre>
  :showvar hp@version
  HPOSVERSION = B.79.06   (can't be changed)
  HPRELVERSION = B.79.05  (can't be changed)
  HPVERSION = B.79.05  <== this can be changed in sysgen.
</pre>

  --[[JeffVance]]


-- Main.ChrisBartram - 09 Jun 2006