Notes about the QSN file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The QSN file type is primarily associated with 'TAPCIS'. TAPCIS is a DOS-based access program for the CompuServe Information Service. The program dates from the 1983 timeframe where it started as an interpreted BASIC program and later became a standalone program. The program was written and supported by Howard Benner and OMNI Information Resources, Inc. as well as Support Group, Inc. of McHenry, MD. The .QSN file contains downloaded headers for forums designated as "Q" forums you want to read offline.
Detailed information for file extension QSN:
Primary association: TAPCIS
Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.