If you
want to use a common BookVars file for multiple FrameMaker books,
set the AltBookVarsFile parameter to point to the common BookVars
file. The common file can be referenced by a drive letter or a UNC
path descriptor.
Note: You must use the front slash as a directory separator
with the AltBookVarsFile parameter. For more information, see Known
Limitations.
[General]
AltBookVarsFile=//servername/documentation/common/Group-BookVars.ini
; the rest of the file can be empty and is ignored