Starting the IVP by using the EXEC command from within ISPF

You can start the IVP dialog from within ISPF either by using partial syntax with a simple command or by using full syntax.

To start the IVP dialog using partial syntax:

Open an ISPF application dialog.
Issue the following TSO EXEC command in the ISPF panel, option 6:
Figure 1. Simple command to start the IVP dialog from an ISPF panel
```
------------------  TSO COMMAND PROCESSOR  ------------------
ENTER TSO COMMAND OR CLIST BELOW:
===> EXEC 'qqq.SDFSCLST(DFSIXC01)' 'HLQ(qqq)'
 
```
qqq is the high-level qualifier for the IVP, system, and distribution libraries.

You might need to use the full syntax invocation to specify additional parameters for your environment. The full syntax method lets you invoke the IVP startup CLIST and use the IVP system parameters, either the full set or a subset. Use the full syntax method, for example, if you need to specify different high-level qualifiers for the tables and other IVP systems data sets, or invoke the DEBUG parameter for diagnostic purposes. The IVP dialog dynamically allocates the data sets that are needed to support dialog processing; therefore, you do not need to put the IMS ISPF data sets in your TSO logon procedure.

After the command is invoked, the IMS welcome panel displays, followed by the IBM® copyright panel. Press Enter to go to the IVP Environment Options panel.