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{warning:title=Important update - Issue when using Windows 10 Creators Update (March 2017 Update, build 1703)}
{warning:title=Critical Update - Spectre & Meltdown}
A problem has been identified within WebX clients after upgrading to the Windows 10 Creators update build 1703 whereby the scroll bars on an embedded list control (e.g. SQL Query, Event List, Alarm List on a mimic) in WebX no longer work as expected. We are actively working with Microsoft on this problem, which has been recently confirmed as an issue in MS Internet Explorer. MS Issue Reference: REG 117052415792436.
*18 January 2018*

Current advice for ClearSCADA customers using WebX is that they should avoid upgrade of their Windows 10 clients to Creators Update build 1703 until this issue is resolved.
The testing and verification of Microsoft patches for these vulnerabilities is ongoing.

*Customers impacted by the above are encouraged to raise this directly to Microsoft via their Support Channels, quoting the Issue Reference: REG 117072016066603, to help facilitate a timely resolution.*
We hope to advise users during January of the potential performance impact of these updates, and whether an update of ClearSCADA software will be required for any reason.

Recent testing has uncovered a potential work-around; when using Google Chrome browser and the IE Tab Extension (which simulates an Internet Explorer browser) version we were able to successfully use the embedded mimic's scrollbars. The following considerations apply:
* We have not formally tested WebX using Google Chrome’s IE Tab Extension.
* Using Chrome web browser may be a problem for some customers (e.g. a Security Policy might exclude the use of Google Chrome browser, or the extension kits)
* The extension may be using an older version of Windows library, and a newer version of the extension might reveal the problem again.
Please see the updates on [this page|CS:Critical Update - Spectre and Meltdown].

Thanks for your support, but overall we apologize for any inconvenience.
{warning:title=Update: 19th October 2017}
We're pleased to confirm that the above scrollbar problem in Windows 10 Creators Update build 1703 has been resolved. This issue has been addressed by Microsoft in the October 10 Update in [KB4041676 (build 15063.674)|].
Microsoft advises that Windows Update is the preferred method for installation but the standalone package is available [here|].

This update has been validated against released versions of ClearSCADA as per the updated testing results below.

Microsoft provides the Windows Update Service that securely distributes updates and bug fixes in the form of patches. Microsoft schedules the release of patches via Windows Update every second Tuesday of each month, which has unofficially become known as 'Patch Tuesday'.