When trying to open some web page file e.g. .xhtml file in VPE editors JBDS comes with this error message:

Could not open the Visual Page Editor: No more handles (java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
C:\WINDOWS\Temp\jbdevstudio4\eclipse\configuration\org.eclipse.osgi\bundles\157\1\.cp\swt-xulrunner-win32-3649.dll: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem
no swt-xulrunner-win32 in java.library.path
C:\WINDOWS\Temp\swtlib-32\swt-xulrunner-win32-3649.dll: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem
Can't load library: C:\WINDOWS\Temp\swtlib-32\swt-xulrunner-win32.dll
)
No more handles (java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
C:\WINDOWS\Temp\jbdevstudio4\eclipse\configuration\org.eclipse.osgi\bundles\157\1\.cp\swt-xulrunner-win32-3649.dll: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem
no swt-xulrunner-win32 in java.library.path
C:\WINDOWS\Temp\swtlib-32\swt-xulrunner-win32-3649.dll: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem
Can't load library: C:\WINDOWS\Temp\swtlib-32\swt-xulrunner-win32.dll
)

It doesn't occur in related JBT installed from update .zip file.