Article ID: 183712 - View products that this article applies to.
This article was previously published under Q183712
This article provides details on how to install the SDK for Java and how to use the Clspack, Classd.exe, and Javasrc.exe utilities.
The Microsoft Java Virtual Machine (MSJVM) is not available for distribution from Microsoft. It is not being included in future Microsoft products. Microsoft software and SKUs that currently include the MSJVM will continue to be discontinued or be replaced by versions that do not contain the MSJVM. Between 1999 and 2003, Microsoft issued 10 MSJVM security updates. A cumulative update is available on the Microsoft Windows Update Web site. For more information, visit the following Microsoft Web site:
Following is a checklist of items that provides direction on how to install the SDK for Java and to use its utilities.
RequirementsThe SDK for Java requires Microsoft[ASCII 174] Windows 95, Windows 98, or Windows NT 4.0, and the latest retail version of Internet Explorer. If you have Internet Explorer 3.02, then make sure you have Authenticode 2.0 and that the Security Settings are enabled to allow downloading of active content. To do this, from the browser's View menu, click Options, and then select "Allow downloading of Active Content" in the Security tab).
InstallationThere are two ways to install the SDK for Java. You can choose either of the following methods:
What is CLSPACK?Clspack is a tool that is used to create a new Classes.zip file in the \%Windir%\Java\Classes directory. This tool converts packages that are currently installed via the package manager and writes their contents into a ZIP file. You can find this tool in <sdk-dir>\Bin directory and in the \%Windir%\ directory.
The typical command to run Clspack is as follows:
This will create a Classes.zip file and place all the Java packages in %Windir%\Java\Classes\Classes.zip. It contains all system classes stored in the JPM. The Microsoft compiler for Java (jvc) checks this location by default, so there is no need to set your classpath environment variable. If you use another Java compiler that does not check this location, set your class path variable as follows:
NOTE: If you have used SDKSetupWizard for installing SDK for Java, then this tool is automatically run as soon as you reboot your machine after installation. If, on the other hand, you have used the self-extracting file for installation, then make sure you run Clspack-auto manually after installing all the components.
What Are Classd.exe and Classr.exe and Javasrc.exe?Microsoft Visual J++ users can also experience the benefits of the SDK for Java with these updated versions of system classes that contain class debug information as well as Java source for most system classes. These classes should be used with the corresponding VM release. The Javasrc.exe tool, provided with Visual J++ and the SDK, should be used to remove extract the source files onto the local machine.
How to Use the JDK 1.1 Features with Visual J++?In order to be able to use the JDK1.1 language features with Visual J++, you need to use the Jvc.exe that comes with the SDK for Java version 2.0x or newer. This Jvc.exe also includes the ability to compile code with the following features:
How to Use the Other Tools Provided with the SDK For JavaIn order to be able to use the other tools in the SDK, make sure you point to the <sdk-dir>\Bin directory. Most of the SDK tools are under this directory. Note, however, that the CABAndSIGN tools are located in the <sdk-dir>\Bin\PackSign directory.
NOTE 1: Jactivex.exe is a new tool that replaces JAVATLB that ships with Visual J++ 1.x. This tool can be found in the <sdk-dir>\Bin directory and is extensively used for creating wrapper classes for ActiveX objects in Java.
Here is the command to run this tool:
"Filename" is the file name of the type library (*.tlb, *.olb, *.ocx, *.dll or *.exe). This generates java source code (.java) rather than the .class files that JAVATLB generates. The generated Java source requires new functionality not present in older versions of the compiler in Microsoft Visual J++ 1.x. So you need to compile the generated .java files with the Jvc.exe that ships with the SDK for Java versions 2.0x or newer.
NOTE 2: Also note that the SDK for Java versions 2.0x or newer provides a new version of JavaReg.exe (version 2.0; the original version is JavaReg 1.0 that ships with Visual J++ 1.x). This tool is used for registering Java classes as COM objects. JavaReg.exe can also be found under the <sdk- dir>\Bin directory.
To download the latest retail version of Internet Explorer, see the following Web site:
http://www.microsoft.com/ie/To download the SDK for Java, visit the following Web site:
167938For more information on the CLSPACK utility, please refer to the SDK for Java documentation available at the following Web site:
(http://support.microsoft.com/kb/167938/ )How do I run JavaSrc after installing Classes.zip
177165For more information on the tools available in the SDK, please refer to the following Web site:
(http://support.microsoft.com/kb/177165/ )Use new Java 1.1 language features with Visual J++ 1.1
167998For more information on how to CABAndSIGN using the SDK tools, please refer to the following Web site:
(http://support.microsoft.com/kb/167998/ )FIX: Cannot debug Visual J++ programs on Internet Explorer 4.0
(http://support.microsoft.com/kb/181374/ )Related component download articles
Article ID: 183712 - Last Review: November 14, 2005 - Revision: 6.4