If the distribution mechanism is windows nt 4.0 option pack Microsoft office 97 and the features is service release, what is the version?
create table table_2263152_1 (version varchar, features varchar, distribution_mechanism varchar, PRIMARY KEY (version))
select version from table_2263152_1 where features = "service release" and distribution_mechanism = "windows nt 4.0 option pack microsoft office 97"