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After upgrading Sametime to 7.5.1 or 7.5.1 CF1, users are unable to attend meetings using Internet Explorer
 Flash (Alert)
 
Abstract
Using Internet Explorer 6 or 7, users are unable to get into a meeting on a 7.5.x or 8.0.x server.
 
Content
Using Microsoft® Internet Explorer (IE) 6 or 7, users are unable to attend meetings on a Lotus® Sametime® 7.5.x or 8.0.x server.

Symptoms
The browser's status shows:
STMeetingRoomApplet notinited

The java console shows:
<STVMVerifier> JAVA VM VENDOR: Sun Microsystems Inc.
<STVMVerifier> JAVA VM VERSION: 1.5.0_04
<STVMVerifier> OS NAME: Windows 2003
<STVMVerifier> OS ARCH: x86
<STVMVerifier> OS VERSION: 5.2

PROPERTIES PATH: /STVMVRes751/properties/VMblacklist.properties
load: class com.lotus.sametime.mrc.STMeetingRoomApplet not found.
java.lang.ClassNotFoundException: com.lotus.sametime.mrc.STMeetingRoomApplet
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadCode(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
at sun.applet.AppletClassLoader.getBytes(Unknown Source)
at sun.applet.AppletClassLoader.access$100(Unknown Source)
at sun.applet.AppletClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 10 more


Comments
- Issue is not related to the JVM version being used.
- Issue is not reproducible using a Firefox browser.
- Some customers have noted similar problems when port 1533 is not open on the firewall between the server and clients


Cause
This issue is the result of a defect in Internet Explorer 6 and 7 and its ability to handle code base attributes for the <OBJECT> tag.

For more details on the specifics of the defect, please refer to the following Microsoft Support documents:
Article 937266
Article 937265


Resolution
To address the issue, end-users' workstations must be updated with the Internet Explorer patch provided by Microsoft. Below are direct links to the patches:

Windows 2000
Cumulative Security Update for Internet Explorer 6 Service Pack 1 (KB933566)


Windows XP
Cumulative Update for Internet Explorer 6 for Windows XP Service Pack 2 (KB933566)
Cumulative Update for Internet Explorer 7 for Windows XP Service Pack 2 (KB933566)


Windows server 2003
Cumulative Update for Internet Explorer for Windows Server 2003 (KB933566)


Windows Vista
Cumulative Update for Internet Explorer 7 in Windows Vista (KB933566)
Note: Although this issue has not yet been seen on Windows Vista, the above update was released on the same day as the others and might be relevant.


Other OS
If your operating system (OS) and browser combination is not listed above, find the appropriate download link here.


Patch Verification
The following file needs to be updated by the Microsoft patch. Below are examples of the file before and after the Microsoft patch has been installed:

File: C:\WINDOWS\system32\mshtml.dll

File VersionSizeModified date
Before6.0.2900.21802,933 KB8/4/2004 8:00:00 AM
After6.0.2900.31322,987 KB5/4/2007 5:29:16 AM
 
 
 

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Document information
 Product categories:
 Software
 Organizational Productivity, Portals & Collaboration
 Real-time & Team Collaboration
 Lotus Sametime
 Web Conferences/Meetings
 Operating system(s):
  Windows
 Software version:
  7.5.1, 7.5.1.1, 8.0, 8.0.1
 Reference #:
  1259860
 IBM Group:
 Software Group
 Modified date:
 2008-11-24

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