environmental variables in windows

Mattk470 has asked for the wisdom of the Perl Monks concerning the following question:

I'm trying to configure a wrapper around a program called Clustalw.exe and here is the directions.. where do i enter the environmental variable in windows on perl 5.8?

# You will need to enable Clustalw to find the clustalw program. This
# can be done in (at least) two ways:
# # 1. define an environmental variable CLUSTALDIR:
# export CLUSTALDIR=/home/peter/clustalw1.8
# # 2. include a definition of an environmental variable
CLUSTALDIR in
# every script that will use Clustal.pm.
# $ENV{CLUSTALDIR} = '/home/peter/clustalw1.8/';

Comment on environmental variables in windows

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Re: environmental variables in windows by eieio (Pilgrim) on Mar 15, 2005 at 22:03 UTC
Environment variables can be set, in Windows XP, via the "System" Control Panel, "Advanced" tab, "Environment Variables" button. In addition, you can set environment variables in your command shell: set CLUSTALDIR=c:\clustalw1.8\ Finally, you can set environment variables in your script as stated in your question.	[reply]
Re^2: environmental variables in windows by ikegami (Patriarch) on Mar 15, 2005 at 23:09 UTC
Note: If you set the environment variable in the shell, it will only be readable by that shell process, its child processes, its children's child processes, etc.	[reply]