Following are some tips in helping to combat the growing threat of viral infection: 1. Use an automated virus-detection tool; 2. Regularly perform a backup of your data with a backup program; 3. Prevent unauthorized access to your computer by using a security access program; 4. Use writer-protected tabs on all program disks before installing any new software.If the software does not allow this,install it first,then apply the write-protected tabs; 5. Do not install software unless you know it has come from a reliable source.For in.stance,service technicians and sales representatives are cornmon carriers of viruses. Scan all demonstration or repair software before use; 6. Scan every floppy disk before use and check all files downloaded from a bulletin board or acquired from a modem; 7. Educate employees.As the adage goes,"An ounce of prevention is worth a pound of cure."; 8. Do not boot from any floppy disk,other than a clean,DOS-based disk; 9. Avoid sharing software and machines; 10. Store executable and other vital system parameters on a bootable DOS-based disk and regularly compare this information to the current state of your hard drive.