Dr. APPN Diagnosis  Version 1.00        11/01/93
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Purpose: DRAPPN.EXE was created by a need for customers and support staff to be
         able to quickly check for connectivity while not having to remember
         all of the verbose options required to execute some of the IBM Sample
         utility programs. Because of this need and the desire to make it into
         a simple PM based utility, VX-Rexx was chosen as a simple front end
         to the existing IBM sample programs to allow upgrades to these without
         requiring rebuilding the front end.

Design:  The design started with a main menu selection of 10 different options
         which appeared to be the most common for most people's use. They
         include the following:
         APING Mainframe       - These options issue a standard APING to either
         APING Network Node      an APPC/MVS Application, an APPN Network Node,
         APING Prompt            or any other name that will be prompted for.
                                 They interrogate the response to issue a
                                 single reply indicating whether or not the
                                 connectivity test was good or bad.
                                 There are 2 user customizeable files called
                                 MFLIST.DAT and NNLIST.DAT which contain the
                                 fully qualified names of APPC/MVS Appls and
                                 Network Node names. Of course you can include
                                 End Nodes,LEN's,etc if desired in either list.
                                 The distinction was to be able to show that
                                 there is a relationship between End Node and
                                 Network Node(most likely) before End Node to
                                 APPC/MVS host. E.G. Check your Network Node
                                 and then check the Mainframe to ensure the
                                 proper connectivity. If this is distributed to
                                 end user's, my suggestion would be to only
                                 include the user's Preferred and possibly
                                 their backup NN server.

         APING Options MFLIST  - This is pretty much the same as above options
         APING Options NNLIST    except that the output is not interrogated but
         APING Options Prompt    merely presented to the user with EPM.EXE.
                                 Since this data is most likely being used for
                                 performance measurements, I wanted an easy way
                                 for the user/support person to save the data
                                 into another file,etc.

         Display Links NNLIST  - This option issues the DISPLAY -LI command to
         Display Links Prompt    find out the Active links to a particular
                                 Network Node or Prompt for any node. This also
                                 implies that they must have RDSPSRVR.EXE
                                 available on that node. The same NNLIST.DAT
                                 file is used here. EPM.EXE is used to present
                                 this data to the user for the same reason as
                                 APING Options, historical purposes.

         Display Options NNLIST- This option prompts the user for which of the
         Display Options Prompt  24 available options to query for. They are
                                 Check box selectable and multiple options can
                                 be selected. If no option is marked, then ALL
                                 options are used.


General Information - Error's from APING and DISPLAY programs are not routed to
                      the standard output, therefore, if an error of this type
                      occurs, I decided to go ahead and let it flow to the
                      VX-Rexx Console for interrogation.

Files distributed   - MFLIST.DAT   Sample list of APPC/MVS Appls
                      MODLIST.DAT  Sample list of Mode names
                      NNLIST.DAT   Sample list of Network Node names
                      VROBJ.DLL    VX-Rexx Object DLL
                      DRAPPN.EXE   DRAPPN Executable
                      DRAPPN.ICO   DRAPPN Icon
                      APPNDR.TXT   This help file

Files Needed        - APING.EXE    Available on Compuserv,OS2BBS,etc
                      DISPLAY.EXE  Available on API diskette for Comm Mgr and
                                   distributed automatically with CM/2.


If problems are encountered or you have suggestions, please route them to
Kerry Mercer via Compuserv @ 75000,175