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2. MICROSOFT IIS PLUGIN (WINDOWS)
ServletExec 4.1 Installation Guide 5
OS Web Server
Windows 2000
Internet Information Server (IIS) 5.0
Windows NT 4.0 Server
Internet Information Server (IIS) 4.0
Windows NT 4.0 Workstation
Peer Web Services (PWS) 4.0
Table 2. Supported Operating Systems and Web Servers
2.2.2 JDK or JRE
ServletExec/ISAPI 4.1 is not supported on JDK or JRE 1.1.x or earlier.
To install ServletExec/ISAPI 4.1, you must first install one of these Java Development
Kit (JDK™) or Java™ Runtime Environment (JRE) choices:
• JDK/JRE 1.2.2 or 1.3.1 for Windows from Sun Microsystems
• JDK/JRE for Windows 1.3 from IBM
Important
The JRE does not contain a Java compiler, which is required by ServletExec to support
JavaServer Pages (JSP). Be sure to install the JDK, and not the JRE, if you plan to use JSP.
You can download the Sun JDKs for Windows from:
http://java.sun.com/j2se/
You can download the IBM JDKs for Windows from:
http://www.ibm.com/developerworks/java/
As of this writing, the latest production versions of the Sun JDKs for Windows are 1.2.2
and 1.3.1. The latest production version of the IBM JDK for Windows is 1.3. These are
the versions we tested and recommend using with ServletExec/ISAPI 4.1.
2.2.3 JDK/JRE Installation
To install ServletExec/ISAPI, you must have first installed a compatible version of the
JDK or JRE as explained in Section 2.2.2.
Important
The JDK or JRE must be installed on a local drive and not on a mapped network drive. If the
JDK/JRE has been installed on a mapped network drive, ServletExec/ISAPI will not be able to
load and initialize the Java VM.
2.2.3.1 Multiple JDK/JRE Versions Installed
You may have multiple versions of the JDK/JRE installed on your system.
ServletExec/ISAPI (including the installer) uses registry entries to determine which
installed JDK/JRE to use. It will look for an installed JDK first and if it doesn’t find one
it will look for a JRE. It will look for JDK/JREs from vendors in the following order: Sun
Microsystems, and then IBM. Here’s the complete algorithm: