Windows 2000
j2re1.4.1 build 10
javaws Version 1.2-beta(build beta-b06)

"Error opening file for writing: C:\Program Files\Java Web Start\javawspl.dll
Hit abort to abort........." - message coming during installation process over existing jaws running.
Steps:
- install jaws (in my case Version1.2[EA] (build ea-b04), which bundled with jre1.4.1 build 10)
- run Application Manager
- now try to install diff version of jaws(Version 1.2-beta(build beta-b06 for example)
- during the installation process after "Directory to install" Next - error mesage coming : "Error opening file for writing: C:\Program Files\Java Web Start\javawspl.dll. Hit abort to abort........."
- click on Ignore, installation completed successfully.

N/A

This error is due to an existing instance of JavaWS running while the user is
trying to install over it.  We should document this for Hopper and fix the
message for Mantis.

  xxxxx@xxxxx   2002-05-01

Suggested documentation for Release Notes:

"'Error opening file for writing' message during install:

This message is usually displayed when trying to install while an existing
version of Java Web Start is running.  If you see this message, it is
recommend that you close all existing instances of Java Web Start applications,
and click 'Retry'.  If this does not solve the problem, you must reboot and
run the install again."

  xxxxx@xxxxx   2002-05-01

Will be addressed by moving to IS 7.

  xxxxx@xxxxx   2002-07-23