PreEmptive Protection - DashO 9.0
User Guide

First Run

Launching the PreEmptive Protection - DashO User Interface

Start the PreEmptive Protection - DashO user interface with the installed launcher:

  • Windows®: Search for PreEmptive Protection - DashO X.y on the Start Menu or Start Screen.
  • macOS: Click PreEmptive Protection - DashO X.y from Launchpad.
  • Linux: Search for PreEmptive Protection - DashO X.y in the applications listing.

Note: To configure DashO to launch with a specific JVM, see the Configuring the Launcher section below.

You can also start it by running the dashogui[.bat] in the installation directory. See the Command Line Interface page for more details.

The user interface is described in the User Interface Reference. After you have created a project using the interface you can run it from there or from the command line.

Configuring the Launcher

Note: Editing files within the DashO installation directory may require elevated privileges.

Windows and Linux

On Windows and Linux, the DashO User Interface is launched using dashogui[.bat]. Custom options can be set in dashorc[.bat]. See the Command Line Interface page for more details.

You can configure DashO to launch with a specific JVM by setting a variable, DASHO_JAVA_HOME, either in dashorc[.bat] or in the environment. The value of this variable should be the path of the desired Java installation. E.g., C:\Program Files\Java\jdk-9.0.4 for Windows, or /usr/java/jdk-9.0.4 for Linux.

macOS

On macOS, the DashO User Interface uses a native launcher that can be configured by editing the PreEmptive Protection - DashO X.y.cfg file located in the installation directory.

You will need administrative privileges to edit this file, and could edit it using a text editor like nano by running the following in a Terminal window:

sudo nano -w /Applications/PreEmptive\ Protection\ -\ DashO\ X.y.app/Contents/Java/*.cfg

The following properties can be configured:

  • app.runtime - The path to a specific Java installation, which DashO will use as its runtime environment. E.g., /Library/Java/JavaVirtualMachines/jdk-9.0.4.jdk.
  • [JVMOptions]/[JVMUserOptions] - Java specific options.
    • You can specify a starting heap size for the JVM by adding an -Xms option under [JVMUserOptions]. E.g., -Xms=512m would allocate a starting heap size of 512 megabytes.
    • You can specify a maximum heap size for the JVM by adding an -Xmx option under [JVMUserOptions]. E.g., -Xmx=2048m would allocate a maximum heap size of 2048 megabytes.
    • You can specify a stack size for the JVM by adding an -Xss option under [JVMUserOptions]. E.g., -Xss=1m would allocate a stack size of 1 megabyte.
  • [ArgOptions] - Specific arguments (e.g. --verbose or --printStackTraces) to pass to DashO.

Note: Do not include the Contents/Home portion of the path when setting app.runtime on macOS.

The Installation Directory

DashO's documentation refers to {DashO's Installation Directory}. This the the directory which contains DashOPro.jar. The default installation directory varies by operating system:

  • Windows: C:\Program Files\PreEmptive Solutions\PreEmptive Protection - DashO X.y\app
  • macOS: /Applications/PreEmptive Protection - DashO X.y.app/Contents/Java
  • Linux: /opt/PreEmptive_Protection_DashO_X_y/app

Note: If you installed by extracting the .zip or .tar.gz file, this would refer to the location where you extracted the file.

Registering PreEmptive Protection - DashO

The first time you use the product you will be prompted with a registration dialog that will walk you through the process. Fill out the registration form using the serial number provided via email upon purchase confirmation or approval of evaluation. Required fields are highlighted until they have valid information entered.

If you use a proxy server to access the web you may have to enter that information now. In general, DashO will pick up the proxy information from the operating system and you can just click on Register.

After your registration is submitted, DashO requests you to participate in the Customer Feedback Program. If you are evaluating DashO, then you are automatically enrolled.

You will receive an email confirming your installation.

Note: The PreEmptive Solutions Support Department can be reached via phone at +1.440.443.7200 ext. 2, or via email at support@preemptive.com. The About dialog shows your serial number.

PreEmptive Protection - DashO FAQ

Frequently Asked Questions regarding DashO may be viewed online at www.preemptive.com/products/dasho/FAQ.html.