The Universal Character Set coded in 2 octets, as specified by the ISO-10646 Standard. UCS-2 is a two-byte fixed width subset of UTF-16. See Appendix C, "Relationship to ISO/IEC 10646," in the Unicode Standard.
An ISO/IEC 10646 encoding form, Universal Character Set coded in 2 octets. The Tivoli Storage Manager client on Windows NT and Windows 2000 uses the UCS-2 code page when the client is enabled for Unicode.
the original "Unicode" encoding on Microsoft Windows, limited to code points up to U+FFFF