Launching Applets using 64-bit Java

Situation:

In the case that your applet is configured to use more than 1536M maximum memory, you will need to use 64-bit java to launch the applet (Ex: Data Mapper, Process Designer)

If you are attempting to launch an applet using 32 bit java, the splash screen will appear and disappear but the applet will not load.

Tip:

A) If you only have 64-bit java installed, windows will automatically launch the applet using 64-bit java.

B) In case you have 64-bit java and 32-bit java installed, you will need to make a registry edit to allow the 64-bit java to be used as default when launching the applets. Use the following steps:

1) With administrative permissions, click Start > In the search box type "Run"
2) In the Open field type "regedit"
3) Navigate to the path \HKEY_CLASSES_ROOT\JNLPFile\Shell\Open\Command
4) Right-Click on the (Default) Name > Modify
5) In the Value data field, enter the path to the 64 bit javaws.exe. For example ("C:\Program Files\Java\jre7\bin\javaws.exe" "%1")
6) Click Ok > then press F5 to refresh and confirm the change has been made

Launch the mapping applet, which will now be using the 64 bit javaws.exe