It may or may not apply to your case, but there were reports of problems starting JScript Runtime when starting Applets or Java WebStart applications when you have certain network settings.
From time to time, Windows Update appears, which generates such an error, and another - a correction, and you will see some of these errors. Perhaps yours may be one of them.
Usually the workaround between them is as follows:
- go to IE Network Settings and uncheck "Autodiscover Settings" or any PAC file settings
- or go to the "Network Settings" of the Java Control Panel and disable "Use Browser Settings" or other settings to use a direct connection.
Obviously, the workaround is only valid if you do not have to go through a proxy server ...
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