This parameter, which is applicable to the APPL control statement (see APPL statement), prevents or allows a VTAM INQUIRE on the application defined by the statement.
INQUIRE=N can be useful in the situation where a dummy application is displayed unprotected on a menu. This allows the user to key in any VTAM application they want. If INQUIRE=Y is in force the dummy application will be inquired upon, which can cause unnecessary overhead. This can be prevented by specifying INQUIRE=N. For example:
SESSION 4 APPLID USER REFAPPL=YES
DESC 'an application of your choice'
APPL USER INQUIRE=NO
The frequency of the inquires is governed by the INQINTERVAL parameter of the SYSTEM statement.