For VisualAge Smalltalk Version 5.5.1, you do NOT need to
install VisualAge Smalltalk Version 5.5 before you install Version
5.5.1. Version 5.5.1 determines if Version
5.5 is installed on your machine and does one of the following:
Installing VisualAge Smalltalk Enterprise Version 5.5.1
Note: If you have previously installed VisualAge Smalltalk Enterprise Version
5.5, the directories icsrun, icspkg, and
image will not be overwritten. However, the contents of
other directories may be overwritten. You should backup any files you
may need from the other directories.