FrameMaker

FrameMaker is a document processor application, originally produced by Frame Technology Corp. but later bought by Adobe and released as Adobe FrameMaker.

A FrameMaker 4.0 book consists of a .BK file along with one or more .TOC (table of contents) and .DOC (document) files. Later versions (e.g. 6.0 and 7.0) use the .BOOK extension.

Version 4.0

 * ftp://ftp.hs-merseburg.de/pub/hardware/sound/Avance_Logic/s100dm2.zip
 * ftp://ftp.hs-merseburg.de/pub/hardware/sound/Avance_Logic/s100ug1.zip

Software and Program Code
30-day trial versions of FrameMaker 7.0 are available which can open files back to at least version 4.0:
 * Windows
 * Macintosh