If this Applet does not run
Since Java 1.7 update 45 the security settings of the Java runtime have been altered
quite drastically by Oracle. This stopped many applets like JavaFoil from
working in the browser and raised a lot of criticism. The error message says
"Self signed applet blocked by security settings" or similar.
In Java 1.7u51 Oracle has reverted the security settings to a more user
friendly scheme. Now you can again select by yourself, whether you want to trust
and run
an applet or not. Note that you need Java 1.7 update 51 or later (get it from Oracle's web site
http://www.java.com).
In previous updates there is no way to adjust the security settings.
I could avoid most of these problems if I would sign the applets with a
certified signature. However such a certificate would cost me about $200 per
year which I am not willing to spend just for this small part of my hobby. This
certificate market seems to be a sort of money making machine and does not give
a lot of extra security as everybody interested in fraud can obtain such a
certificate without problems if he just pays for it.
On Windows systems
In order to get these applets running, you have to open the Java Control
panel:
Windows XP and Windows 7: Start >> Control Panel >> Java >> Security Tab
On the Security tab you have to adjust three items
1) activate the "Enable Java content in the browser" checkbox,
2) set the security settings slider to "High (minimum
recommended)",
3) add the web site https://www.mh-aerotools.de/ to the
"Exception Site List".
After making these adjustments and loading the applet page you should be prompted whether you want to run the applet.
If this does not work for you, you can install a local copy of JavaFoil
on your computer as described in the next section. |
 |
Step by Step Instructions to install a local
copy of JavaProp
On Windows systems:
- Check, whether you have already a Java virtual machine (VM) installed on
your system.
- on Windows 98, 2000, XP: open a command window and execute the command
java - version .
- If the java command can be found, your system probably has a working Java
installation. If not, you will have to get the appropriate Java Runtime
Environment (JRE) for your system from Oracle's web site
http://www.java.com.
- Download the Windows Installer file which contains all JavaProp files
and installs them correctly.
If the direct download does not work (you receive
a "view" of the the file on screen), you should use the context menu (right
mouse button) of your browser to download the .msi file (Microsoft
Installer file).
Then you can run the .msi file or use the context (right mouse button) menu to
install.
The Installer will install an html file to be used with your browser as well
as a VBScript file (.vbs) which can be used to run JavaProp without a
browser by clicking onto the .vbs file. You can de-install JavaProp
by using the Software applet in the
System Control program.
The Microsoft Installer is not part of Windows 95 and 98 but can be
downloaded from the Microsoft web site:
On Unix systems:
- Check, whether you have already a Java virtual machine (VM) installed on
your system.
- on Unix: open a shell or terminal window and execute the commands java
-version.
- If the java command can be found, your system probably has a working Java
installation. If not, you will have to get the appropriate Java Runtime
Environment (JRE) for your system from Oracle's web site
http://java.com.
- Download an installation script which contains all JavaProp files
and installs them correctly.
If the direct download does not work (you receive
a "view" of the the file on screen), you should use the context menu (right
mouse button) of your browser to download the .sh file (Shell script).
Then you can execute the .sh file in a shell window.
You can de-install JavaProp by
deleting its directory, it does not modify your system in any other way.
Running JavaProp directly via WebStart
You must have Java version 1.5 or above
Last modification of this page:
21.05.18
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