JRchive

File Format
Name	JRchive
Ontology	Electronic File Formats Archiving JRchive
Extension(s)	.jrc
Released	1992

JRchive is a compression/archiving utility, and its associated file format. It was developed by John Ross and JAYAR Systems. There were versions for DOS and Unix. The DOS version was distributed as shareware.

Self-extracting archives

Self-extracting archives are supported, though creating them is a manual process. They use EXE format.

Identification

Files start with the ASCII signature "JRchive". In all known versions, this is followed by "10".

Self-extracting archives start with the bytes in the included "SELFEX" file, which is different in each version. They have an embedded archive in the overlay segment (refer to MS-DOS EXE#Special file positions).

Software

• JRchive - DOS shareware
  • v1.01 (1992-05)
  • v1.02 [release 1] (1993-11)
  • v1.02 [release 2]
  • v1.10 (1995-05)

The two v1.02 releases are the same, except for the documentation.

Links

• JAYAR Systems - Software Products (from archive.org)