Unlike the VISCII and VPS code pages, VIQR is rarely used as a character encoding.
While VIQR is registered with the Internet Assigned Numbers Authority as a MIME charset, MIME-compliant software is not required to support it.
[4] Nevertheless, the Mozilla Vietnamese Enabling Project once produced builds of the open source version of Netscape Communicator, as well as its successor, the Mozilla Application Suite, that were capable of decoding VIQR-encoded webpages, e-mails, and newsgroup messages.
[5][6] By the early 1990s, an ad-hoc system of mnemonics known as Vietnet was in use on the Viet-Net mailing list and soc.culture.vietnamese Usenet group.
[7][8] In 1992, the Vietnamese Standardization Group (Viet-Std, Nhóm Nghiên Cứu Tiêu Chuẩn Tiếng Việt) from the TriChlor Software Group led by Christopher Cuong T. Nguyen, Cuong M. Bui, and Hoc D. Ngo in California formalized the VIQR convention.