Java Error when opening a new program AND in Control Panel

After installing a new program (PDF Split & Merge), when I try to open the program, I get the following dialog box:

          Java Virtual Machine Launcher
          Error: could not find Java SE Runtime Environment

I went to the Control Panel, and when I click on Java, I get the following dialog box:

          Java(TM) Control Panel
          The system cannot find the registry key specified:
          HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.6.0_24

I have installed other programs since this error message and have had no problems.  I have no idea what all this means or how to fix it. Java error message when opening program Java error message in Control Panel
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CEHJConnect With a Mentor Commented:
Looks like you should probably do a java uninstall and reinstall
objectsConnect With a Mentor Commented:
pdfsam requires java6.
you'll need to first install it (java6) to use it
you can download it here
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The version depends on what version of your app you're running. Branch one is fine under even under Java 1.4
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