***** *COREQ* *** *COREQ* *** *COREQ* *** *COREQ* *****
Return code: none -informational
Issued if the service about to be installed has indicated that a
corequisite condition should be indicated to you. Normally, the will detail exactly what corequisite conditions
exist. DO YOU WISH TO CONTINUE APPLYING SERVICE? ( -YES- 1 NO )
Return code: none -procedural question
Issued at the end of the application of service for the product
requested by 'RESTART'. If you respond 'YES' (the default), the
'RESTART' indicator is turned off, and the application of service
continues as if 'RESTART' was never specified.
Return code: 0 - Normal termination
A 'NO' response will cause to terminate.
progid HAD TROUBLE. YOU ftUST RESTART VftSERV FINISHED WITH THE INSTALLATION OF SERVICE. Return code: 16 -error, tape position unknown YOU ARE NOT Issued when a service EXEC (progid) returns with a return code of
16 and 'EXIT' was not specified. This indicated the position of
the tape is unknown and VftSERV must be restarted. Other errors may
have been indicated to you such as a tape error or disk full
condition. , RETURN CODES FROft SERVICE EXECS o Service complete. All load and 'BUILD' functions accomplished 4 Service loaded. System PUT is no longer required for any activity.
a 'BUILD' may be required, depending on the product's packaging.
8 Service aborted. Some (or no) service was loaded from the tape. A
'RESTART' is required to apply service. The position of the tape
is known and correct.
12 Unknown error. Unexpected error occurred. A 'RESTART' will have
to be done. Service status and tape position are unknown.
16 SIPOE EXIT. The service EXEC proceeded to the point that a nucleus coy1d have been created and then terminated. VftSERV will then EXIT (with a return code of 0). XX Unknown. This is any unexpected return code from a service exec. Since the return code would have been '12' if the tape position was unknown, service installation will proceed. 3QS IBM VM/370 Planning and System Generation Guide

Appendixes
A. Program Products, Installed User Programs, Field Developed
Programs, and Emulators
B. Configuration Aid
c. CP/CMS Regeneration
D. Compatible Devices
E. Compatibility of VM/370 with CP-67/CKS F. VM/370 Restrictions
G. A Sample EXEC Procedure for Copying DOS/iS Macros into a eMS MACLIB Appendixes 399