CREATE TABLE table_2263152_1 (version VARCHAR, features VARCHAR, distribution_mechanism VARCHAR)

If the distribution mechanism is windows nt 4.0 option pack Microsoft office 97 and the features is service release, what is the version?
SELECT version FROM table_2263152_1 WHERE features = "Service release" AND distribution_mechanism = "Windows NT 4.0 Option Pack Microsoft Office 97"
SELECT "version" FROM "table_2263152_1" WHERE "Service release" = "features" AND "Windows NT 4.0 Option Pack Microsoft Office 97" = "distribution_mechanism"