About the local settings directory of SQuirreL:
SQuirrel SQL is an application written in Java and it uses the Java System Property user.home
to store the local configuration files. Per default, this Java Property points to the home directory of the user. You can change this by the following steps:
Open squirrel-sql.bat in a text editor and navigate to the end of the file. One of the last lines should start with "start "SQuirreL SQL Client" - you have to change this line. Add -Duser.home=PathToStoreTheSquirrelConfigDir
just after the -Xmx argument and ensure, that the new Argument is separated by a space from the others.
Here an example:
-Xmx256m -Duser.home=C:/temp -Dsun.java2d.noddraw=true
Note, that I use the slash and not a back-slash!
Now you can move the existing .squirrel-sql directory to the new place.
e.g C:\temp\.squirrel-sql
Now, if you start SQuirreL SQL, it will use the new storage location. You can verify this in the global properties of SQuirrel (see the section SQuirreL paths)
About the installer version of SQuirreL:
SQuirreL SQL also offers a plain zip instead of a installer version. Here is the link to the latest stable version
SQuirreL is offering 3 packages (base, standard, optional). The difference between them are the packaged plugins. I use the optional package - but the standard package is also fine.