VSSI Home Product Overview
VSSI was formed in 1978 to develop extensions to VM/370 that would support the IBM Transaction Processing Facility (TPF). The first product developed, Virtual PARS (VPARS), is a shadow database facility that allows multiple VM guests to run TPF from a common base system. Over 90% of IBM's licensed TPF customers use VPARS to support their development.
In 1984-85, after numerous requests from many VPARS users, VSSI developed a Virtual Tape (VTAPE) simulation product. Originally created to support TPF usage of tape drives, Virtual TAPE is now widely used by both TPF and non-TPF sites to provide Virtual tape support for VM guests.
Virtual Software Systems, Inc. is located in Gainesville, Georgia (near Atlanta), and can be reached via:
Toll-Free: (855) 411-VSSI (8774)
Direct US: (770) 781-3200
FAX: (770) 781-3210
Product Licensing firstname.lastname@example.org
Product Support email@example.com
Virtual Software Systems, Inc.
7715 Browns Bridge Road
Gainesville, GA 30506