You can install eDirectory 8.8 for Windows without the Novell Client.
Refer to the following Link for more information related to System Requirements, Prerequisites etc. :
Following is the easy walkthrough on the installation process of eDirectory
At the Windows server, log in as Administrator or as a user with administrative privileges.
If you have Autorun turned off, run setup.exe from the nt folder (32-bit eDirectory) and windows folder (64-bit eDirectory) in the Novell eDirectory 8.8 SP6 CD or from the downloaded file.
The installation program checks for the following components before it installs eDirectory. If a component is missing or is an incorrect version, the installation program automatically launches an installation for that component
You might have to reboot the server after the NICI installation.
The eDirectory installation will continue after the reboot.
Specify or confirm the installation path, then click Next
Specify or confirm the DIB path, then click Next.
In eDirectory installation type, Create a New eDirectory Tree
Specify a Tree name, Server object context, and Admin name and password for the new tree.
To install a Windows server into an eDirectory tree that has containers with dots in the names (for example, O=novell.com or C=u.s.a). Using containers with dotted names requires that those dots be escaped with the backslash character. To escape a dot, simply put a backslash in front of any dot in a container name.
In the HTTP Server Port Configuration page, specify the ports to use for the eDirectory administrative HTTP server, then click Next.
In the LDAP Configuration page, specify which LDAP ports to use, then click Next.
Perform the following and click Next.
Select the NMAS™ login methods you want to install.
Specify whether to configure the SecretStore module. By default, the SecretStore option is selected.
Once the installation is complete, setup will close the installation file.
It will be a good idea to restart the computer once after the installation is complete
Once the computer is restarted, go to Control Panel, the Novell eDirectory Services icon should be visible.