Re: OTsort of but not really, Nvidia issue that affects all apps.

Kevin Provance wrote:
Ignore him Steve...he hasn't a clue about what he's talking about.
Any noob wasting space here attempting to dictate what is or isn't
appropriate is laughable. Freshman should be seen and not heard.

If it weren't for the intentional ignorance, you'd be funny. Yours must be
a dismal existance.



"Steve Easton" <admin@xxxxxxxxxxxxx> wrote in message
news:Omtq3Z$EIHA.5328@xxxxxxxxxxxxxxxxxxxxxxx

"Pop`" <nodoby@xxxxxxxxxxxxxxxxxxx> wrote in message
news:XgzSi.1242$uE4.775@xxxxxxxxxxx
Steve Easton wrote:
Posting this because I found an issue with NVIDIA
and repeated registry queries that effect any application that has
focus. To the point that it can slow an application.

Applies to Windows 2k and XP and maybe earlier versions.

If you have an NVIDIA video card, check
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
and see if nwiz.exe is being launched on start up.

If so, launch Registry Monitor ( RegMon ) or Process Monitor from

http://www.microsoft.com/technet/sysinternals/Processesandthreadsutilities.mspx?wt.svl=featured

with a wild card * set as the filter so that it shows everything
and see if the machine is making constant registry queries looking
for: HKLM\Software\NVIDIA
Corporation\Global\NVTweak\DisableWindowCaching

If so, either create a DWORD ValueName DisableWindowCaching and
give it a value of 0 ( zero ) or if you're running a single
monitor simply delete the nwiz.exe entry from the run key.
I don't see this issue in Vista Ultimate, but then I only have one
monitor.


IMO it's pretty bad form to suggest things like that without some
sort
of verifiable source. Since it is a
good suggestion (UNLESS you happen to be using any of its features!)
and a possibility that it does cause
problems (it's a well known problem, actually), I offer the
following in support:
http://www.liutilities.com/products/wintaskspro/processlibrary/nwiz/
Careful: If that wraps, you might have to use copy/paste into your
browser. liutilities is well respected
but you can find similar information in many, many places.


I read that Pop.

Here's the deal: upon discovering this I Googled for:
DisableWindowCaching and got zero hits and the Google not found page.
So it was pretty hard to find a "Verifiable source" even at the
NVIDIA forums where I asked before I ever posted this, and also
where "No one" had
ever heard of it.

So basically I am the "verifiable source."

fwiw, I discovered this little issue while beta testing a new
application from ( insert name of major company here ) and bounced
it off of the dev team, as a bug because I thought it was an
application issue.

Also, before I posted it here I posted it over at grc.techtalk which
does not get public cached by Google and others, where some pretty
savvy softies
hang out, and they verified it and also at some "other" MSFT
newsgroups.

Bottom line, on a single monitor system nwiz.exe is useless and
unneeded, because it runs a process called NVIDIA TwinView which is
the multiple monitor process as noted at the link you posted.
However I posted the totally harmless option of creating the
registry key and giving it a DWORD value of 0 ( Boolean No ) which
solves the issue
of nwiz not properly caching the results of the registry query if
the ValueName doesn't exist.

Gotta ask though, If Rick Rothstein or Randy Birch had posted it
would you have told them it was "bad form" ?


--

Steve Easton
Microsoft MVP FrontPage
FP Cleaner
http://www.95isalive.com/fixes/fpclean.htm
Hit Me FP
http://www.95isalive.com/fixes/HitMeFP.htm



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