SUMMARY
Microsoft has made an update available to Microsoft Scripting Engines
version 3.1 that addresses an issue regarding the way Internet Explorer
handles very long strings with the Window.External JScript function.
Additional information about this issue is available on the following
Microsoft Web sites:
Updates are available for the following products:
- Microsoft Internet Explorer 4.0, 4.01, and 4.01 Service Pack 1 for
Windows 95 and Windows NT 4.0
- Microsoft Windows 98
Internet Explorer 4.0 and 4.01 for Windows 3.1, Windows NT 3.51,
Macintosh, and UNIX on Sun Solaris are not affected by this problem.
Internet Explorer version 3.x is also not affected.
This issue can cause Internet Explorer to quit unexpectedly when you
view a Web page that contains a script written in JScript that uses the
Window.External function with a very long string. It is difficult but
possible for an individual to cause malicious code to be run on your
computer as a result of this problem. There have not been any reports
of customers being affected by this problem.
MORE INFORMATION
This update installs the files listed below.
Microsoft Internet Explorer 4.0, 4.01, and 4.01 Service Pack 1 for Windows 95 and Windows NT 4.0 on Intel x86 platforms:
NOTE: The fix for this issue is included in Service Pack 2.
Update file name: Scr31en.exe
Available at:
Updated file name Size (bytes) Date Version
---------------------------------------------------------
Jscript.dll 484,624 7-2-98 3.1.0.3101
Vbscript.dll 335,120 7-2-98 3.1.0.3101
Dispex.dll 53,520 7-2-98 3.1.0.3101
Scrrun.dll 172.816 7-2-98 3.1.0.3101
Microsoft Internet Explorer 4.0, 4.01, and 4.01 Service Pack 1 for Windows NT 4.0 on Alpha platforms:
Update file name: Scr31en.exe
Available at:
Updated file name Size (bytes) Date Version
---------------------------------------------------------
Jscript.dll 811,844 7-2-98 3.1.0.3101
Vbscript.dll 595,269 7-2-98 3.1.0.3101
Dispex.dll 120,643 7-2-98 3.1.0.3101
Scrrun.dll 265,027 7-2-98 3.1.0.3101
Windows 98:
Update file name: Scr31en.exe
Available at: Microsoft Windows Update Web site
Updated file name Size (bytes) Date Version
---------------------------------------------------------
Jscript.dll 484,624 7-2-98 3.1.0.3101
Vbscript.dll 335,120 7-2-98 3.1.0.3101
Dispex.dll 53,520 7-2-98 3,1,0,3101
Scrrun.dll 172.816 7-2-98 3.1.0.3101
NOTE: Version 4.0 (included with Microsoft Visual Studio 6.0) or 5.0 (Beta
version available for download) of the Microsoft Scripting Engines are not
affected by this problem. If you attempt to install this update over
version 4.x or 5.x of the Scripting Engines, you receive the following
version conflict messages for each of the four files listed above:
NOTE: You should click Yes (keep your existing file) in Windows 95/98 and
No (do not overwrite the newer file) in Windows NT.
For Windows 95/98:
Version Conflict
A file being copied is older than the file currently on your
computer. It is recommended that you keep your existing file.
Filename: <filename>
Description: <description>
Your version: x.x.x.xxxx.
Do you want to keep this file?
For Windows NT:
Confirm File Replace
Source: <path>
Target: <path>
The target file exists and is newer than the source. Overwrite the
newer file?
Reducing Your Risk If You Cannot Apply the Patch
If you are unable to apply the patch, you can reduce your risk of being
affected by this problem by disabling Active Scripting in Internet
Explorer. To do this, follow these steps:
- Click Start, point to Settings, and then click Control Panel.
- Double-click Internet, and then click the Security tab.
- In the Zone box, click Internet Zone.
- Click Custom (For Expert Users), and then click Settings.
- Under Scripting, click Disable in the Active Scripting section.
- Click OK.
- In the Zone box, click Restricted Sites Zone.
- Repeat steps 4-6.
- Click OK.