User`s guide

Installation Notes
1-19
Installation Notes
Maintaining Preference Files After Uninstalling
If you use the Release 12 uninstaller, it will automatically remove your
preference files including the Command History, preferences, and Help
browser favorites.
To keep these files for use in Release 12.1, make a copy of them before
uninstalling Release 12. To see where the files are located, run
prefdir in the
Command Window. The relevant files are listed below.
After uninstalling Release 12, put your backup copy of the files in the location
returned by
prefdir so that Release 12.1 can use the files.
Correcting the Documentation Location
On Windows concurrent license systems and on UNIX systems, if you installed
Release 12.1, including the help files, in a different location than Release 12.0
(as is recommended), the Help browser will not find the Release 12.1 help files.
When you run the Help browser, you will either see the Release 12.0 help files
or you will see a warning stating that the help files cannot be found. To use the
Release 12.1 help files, select
File -> Preferences -> Help and change the
Documentation Location for Local or network directory to the location of
Release 12.1 help files. The location is the
help directory under the MATLAB
Release 12.1 directory, for example,
d:\matlab_r12_1\help.
For single user Windows systems, the Help browser should automatically find
the Release 12.1 help files, but if it does not, change the
Documentation
Location
as described above.
Filename File For
cwdhistory.m
Command Window history
history.m
Command History
matlab.prf
Preferences
matlab_help.hst
Help browser favorites