SELECT version FROM table_2263152_1 WHERE features = "Service release" AND distribution_mechanism = "Windows NT 4.0 Option Pack Microsoft Office 97"
Jika mekanisme distribusi adalah Windows NT 4.0 Option Pack Microsoft Office 97 dan fiturnya adalah rilis layanan, apa versinya?
CREATE TABLE table_2263152_1 (version VARCHAR, features VARCHAR, distribution_mechanism VARCHAR)