How to Install The Java Communications API in a Windows

The following files are the core of JAVA Communication API, and they are very important to have them installed on your system for a proper operation.

• comm.jar
• win32com.dll
• javax.comm.properties

For the jdk (Java Development Kit) to recognize the serial ports on your machine, it is important to properly place these files in the right folders on your local machine .
To Find your JDK directory, Use the Following steps:
1. Click on Start
2. Click on Search
3. Click on For Files or Folders …
4. In the Left hand Side, Click on All Files and Folders 5. Type in jdk* in the textbox under All or part of the file name: 6. Click Search
7. Look for yellow icon that looks like a folder
8. Double Clikc on the folder to open the jdk folder
comm.jar should be placed in:

%JAVA_HOME%/lib

    %JAVA_HOME%/jre/lib/ext

win32com.dll should be placed in:

%JAVA_HOME%/bin

    %JAVA_HOME%/jre/bin

    %windir%System32

javax.comm.properties should be placed in:

%JAVA_HOME%/lib

    %JAVA_HOME%/jre/lib

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