Sue - are you on z?
This is how we input those parms when we were doing testing, copied from a test ARSSOCKD:
XXARSSOC95 EXEC PGM=ARSSOCKD,REGION=0M,TIME=NOLIMIT,
* PARM='ENVAR(GSK_PROTOCOL_TLSV1_2=ON,GSK_V3_CIPHER_SPECS=3C) Pick one, can't both be active
* PARM='ENVAR(GSK_PROTOCOL_TLSV1_2=ON,GSK_PROTOCOL_TLSV1=0) Pick one, can't both be active
/-S -I ARCH950 -v'
Ed