解凍 かいとうソフトじゃありませんでした
kaitōsofutojārimasendeshita

Noun
Desu Copula

The polite, past negative form of 解凍ソフト

1. It wasn't a thawing/defrosting program.; It wasn't defrost software.

Past/Perfective
Negative
Polite
Terminal Form
Computing