RE: [Aimmath-developers] why do we need jdk

[Neil S. <N.P...@sh...>]

> Unix:
> The JAVA_HOME variable is required for proper operation so should
> always be set if it is installed.

Agreed; the AIM installation script already looks for this.

> Windows:
> The install process writes the location in the registry. Look under
> HKEY_LOCAL_MACHINE\Software\JavaSoft\Java Runtime Environment
> There you will find keys for each version which has been
> installed. In each
> such key there is a "Java Home" string value.
>
> On windows your install process should always check for locations from the
> registry since the names can be changed. For example it doesn't actually
> have to be "C:\Windows"; you can call it what you like. Also I
> have "E:\" as
> my program files directory, not "C:\Program Files" for example.
> The windows directory is set in the environment (WINDIR) and also in the
> registry. Others can be found only in the registry.

Clearly Alex is right that we should get information from the registry, if
we can.  However, I do not know how to write a batch file or a Maple script
that consults the registry - does anyone else?

Ideally, we should work out how to do the usual Install Shield thing for
installation under Windows.  A while ago I installed Microsoft Visual
Studio,
which ought to let me do this, but there are many things I would need to
learn beforehand.

Neil