On older operating systems, rebooting your computer with files open by an application could cause file server errors at a future time (Eg., Fatal 114 or Fatal 231). This is because in the DOS file system, while data is written to disk immediately, the FAT (file allocation table) and directory information is not updated until the file is closed. Furthermore, if you are running multiple EXE or COM programs on the same logical drive, there will be time at which the two programs are sharing the same file allocation sector. So when your computer was shut down and programs were still running, disk corruption could easily result.

All CCI operating systems (as of XIOS date 2/14/91) now have a built-in file flush, a background process which writes all FAT and directory information to disk every 30 seconds. For older systems, there is an external program called COMMIT which performs the same function. COMMIT can be obtained on the CCI BBS, through the CCI sales department, or through Systems Plus technical support department.

All Medical Manager systems experiencing file server errors MUST have COMMIT installed, or have been produced after 2/14/91 and be using the built-in file flush.

The following steps should also be taken:

1. In the AUTOEXEC.BAT file, set a path to DOS, and add the DOS command of CHKDSK /F after the path is set. This should be placed before the Loadsys Ask statement. If errors are found, they MUST be corrected and the appropriate files re-indexed. Remember, before you install COMMIT, you need to clean up any existing corruption on the hard disk.
2. The SETUP program should be used to disable the Control-Alt-Del command. This way an accidental keystroke will not cause a reboot.
3. The REBOOT.CMD command should be re-named or removed from the path. The CCI BBS has a small program called OPENS that can be used with a batch file to determine if open files exist before a re-boot can be performed.

**All Medical Manager systems are now being shipped with Host Control-Alt-Del disabled and the REBOOT command located in the Security subdirectory. There is a REBOOT.BAT that will inform the user if files are open.