Event Log "beta site mode settings 0x800000" on Win10, 1709 and 1803  

Soon after I installed a new computer that came with Windows 10, I exported the Application Event Log to examine some messages that a program on which I was working sent there. I almost didn't find them because they were overwhelmed by hundreds of "beta site mode settings 0x800000" messages.

Following the recommendation of a trusted colleague, I upgraded from 1709 to 1803 (Redstone 4) the day it arrived, and have seen few of the legions of reported problems.

This morning, I decided to have a look at the event logs to see whether the many "beta site mode settings 0x800000" messages have been shut off. No; they're still there, at least as numerous as before, maybe more so.

While most refer to svchost, I noticed a couple that refer instead to MicrosoftEdge. They appear in the Application Event Log, which is in the active tab of Attachment 188167 (copy attached).

Both worksheets in this book contain predefined imports that accept files generated by the SysInternals psloglist.exe utility, using the following command.

Code:

psloglist.exe -accepteula -d %3 -s -t \t %1 > "%~2"

In the above command line, a shell script (a .CMD file) makes the following substitutions.

1. %1 = EVTLOG: Registered name of event log, e. g., System, Application
2. %2 = PIPEFILE: Name of file into which to pipe the output
3. %3 = NDAYS: Number of days to dump, or "ALL" to dump all event records

I created this shell script so long ago that I've forgotten what the switches mean; what matters most to me is that it just works.

I would love to know how these messages can be shut off, so that they no longer clutter my event logs.

A small problem trying to open the attachment:
Attachment 188178

The extension .xlsx was new in Excel 12/Office 2007 while the extension .xls is still valid when dealing with files created in older versions [97-2003] of the program [opening or saving].