• Community Edition
• Standard Edition
• Professional Edition
• Embedded Enterprise Edition Client
• Enterprise Edition Client
• Plug-Ins
• EE, EmbEE Evaluation System Guide
  including server applications [PDF]

There are 3 alternative ways to install the Community Edition:

First alternative: Windows, Linux or Mac OS X installer

• Download the installer from our download area.
• Start the installer and follow its instructions.

Second alternative: ZIP archive

• Download the zip file from our download area.
• Save it to the folder where you want to install Poseidon.
• Run the command unzip PoseidonCE-3_0_1.zip (or use an appropriate unzip-program).
• To start Poseidon, run PoseidonForUML_CE_3_0_1/bin/poseidon.bat (under Windows) or PoseidonForUML_CE_3_0_1/bin/poseidon.sh (under Unixes).

Third alternative: WebStart

• Get Java WebStart, install it, and check that your browser has the correct entry for the file type 'Java WebStart', MIME-type 'application/x-java-jnlp-file'. The launched program should be '<your_javaws_folder>/javaws %u'.
• Launch Poseidon with WebStart.
• If Webstart gives you the error message: 'Wrong certificate used to sign resource', please see the FAQ entry 'Webstart stops with the error ...'.

First alternative: Windows, Linux or Mac OS X installer

• Download the installer from our download area.
• Start the installer and follow its instructions.

Second alternative: ZIP archive

• Download the zip file from our download area.
• Save it to the folder where you want to install Poseidon.
• Run the command unzip PoseidonSE-3_0_1.zip (or use an appropriate unzip-program).
• To start Poseidon, run PoseidonForUML_SE_3_0_1/bin/poseidon.bat (under Windows) or PoseidonForUML_SE_3_0_1/bin/poseidon.sh (under Unixes).

First alternative: Windows, Linux or Mac OS X installer

• Download the installer from our download area.
• Start the installer and follow its instructions.

Second alternative: ZIP archive

• Download the zip file from our download area.
• Save it to the folder where you want to install Poseidon.
• Run the command unzip PoseidonPE-3_0_1.zip (or use an appropriate unzip-program).
• To start Poseidon, run PoseidonForUML_PE_3_0_1/bin/poseidon.bat (under Windows) or PoseidonForUML_PE_3_0_1/bin/poseidon.sh (under Unixes).

First alternative: Windows, Linux or Mac OS X installer

• Download the installer from our download area.
• Start the installer and follow its instructions.

Second alternative: ZIP archive

• Download the zip file from our download area.
• Save it to the folder where you want to install Poseidon.
• Run the command unzip PoseidonEE-3_0_1.zip (or use an appropriate unzip-program).
• To start Poseidon, run PoseidonForUML_EE_3_0_1/bin/poseidon.bat (under Windows) or PoseidonForUML_EE_/bin/poseidon.sh (under Unixes).

First alternative: Windows, Linux or Mac OS X installer

• Download the installer from our download area.
• Start the installer and follow its instructions.

Second alternative: ZIP archive

• Download the zip file from our download area.
• Save it to the folder where you want to install Poseidon.
• Run the command unzip PoseidonEmdEE-3_0_1.zip (or use an appropriate unzip-program).
• To start Poseidon, run PoseidonForUML_EmdEE_3_0_1/bin/poseidon.bat (under Windows) or PoseidonForUML_EmdEE_/bin/poseidon.sh (under Unixes).

1. Download the desired plug-in to your hard disk and extract the downloaded ZIP file with a ZIP tool of your preference. Please put the files in the directory poseidon/lib. (For the GoVisual plug-in, extract the files to poseidon/lib/ext.) Each ZIP file contains one or more JAR archives. If you have purchased a plug-in, you have received a key for this plug-in via e-mail.
2. Add the key to Poseidon's list of known keys. You do this by opening Help - License Manager in Poseidon, copying the license key into the text area and pressing the button 'Add'. If this key is valid, it will appear in the list of keys in the license manager. Now you can close the license manager.
3. Add the plug-in to Poseidon's list of known plug-ins. You do this by opening Plug-Ins - Plug-Ins in Poseidon. In the Plug-Ins window, choose Add Plug-In from file and select the jar that was in the ZIP file.
   If the key was installed in the last step, the plug-in will be enabled; otherwise, you will see a notification that there is no key for this plug-in.

Is the plug-in running?

If the installation was successful, you will see the name of the plug-in in the Plug-Ins window. When you select a plug-in, more information on the selected plug-in is shown; the first value, enabled, is set to true if the plug-in is running.

You will see the message 'No valid license for ...' if the key to the plug-in is not available. In this case, check if a key for the plug-in is shown in the Registration dialog (Help - License Manager), and add one if necessary.