Windows Media Player and Svchost.exe -netsvcs



ss4245
07-09-2005, 09:54 PM
Hi,
I've recently run into a problem playing music stored on a hard drive which
is turning out to have a very convoluted way of winding itself to the very
guts of my operating system.

I'm running Windows XP Professional SP2 and recently I decided to purchase
an external hard drive to store music on. After an initial error caused by a
faulty USB 2.0 PCI card, I managed to get the drive up and working. I
transferred all of my music onto it and I was excited to try it out. I played
one of the MP3's and about 30 seconds into the song I heard a jarring jitter,
reminiscent of a skip on an old walkman. These errors continued popping up at
random intervals in every single song that I tried to play.

Since I had never experienced this while the MP3's were stored on an
internal hard drive, I immediately thought that the error must be caused by
the fact that the USB 2.0 port could not keep up with the very high bitrate
of the media. Momentarily disillusioned with my purchase I thought that I
would have to revert back to storing the files back on an internal drive.

However, just to completely convince myself I decided to take a look at Task
Manager while playing a song with Windows Media Player. Interestingly enough
every time the jitter occured a spike showed up in the CPU usage of one of
the svchost.exe processes. So I proceeded to End Task it and sure enough the
jitter dissapeared when playing the exact same songs where it appeard before.

After ending this particular svchost.exe process, I observed that Windows
restarts it. The system remains at status quo for 30 seconds then all of a
sudden the Windows XP theme dissapears, and then restarts. Because of this
symptom I investigated the Control Panel -> Administrative Tools -> Services,
table and saw that the Themes service was part of the "svchost.exe -netsvcs"
executable.

So after a bit of detective work, I think that the solution to this very
annoying problem lies in restarting one of the services which "svchost.exe
-netsvcs" is responsible for running. I wonder if anyone else has had this
problem and if there is a known solution out there?

brentromero
07-09-2005, 09:54 PM
I can't wait to hear the solution to your dilemma. I did the same thing but
with wma lossless music files. Heck, I filled up a 120 Gb external drive
and though I haven't had any problems (yet) I wonder if it doesn't have
anything to do with the mp3 compression.

I'm also curious about your svchost.exe task. Have you tried to manually
disable it to see what happens?
--
brentromero


"ss4245" wrote:

> Hi,
> I've recently run into a problem playing music stored on a hard drive which
> is turning out to have a very convoluted way of winding itself to the very
> guts of my operating system.
>
> I'm running Windows XP Professional SP2 and recently I decided to purchase
> an external hard drive to store music on. After an initial error caused by a
> faulty USB 2.0 PCI card, I managed to get the drive up and working. I
> transferred all of my music onto it and I was excited to try it out. I played
> one of the MP3's and about 30 seconds into the song I heard a jarring jitter,
> reminiscent of a skip on an old walkman. These errors continued popping up at
> random intervals in every single song that I tried to play.
>
> Since I had never experienced this while the MP3's were stored on an
> internal hard drive, I immediately thought that the error must be caused by
> the fact that the USB 2.0 port could not keep up with the very high bitrate
> of the media. Momentarily disillusioned with my purchase I thought that I
> would have to revert back to storing the files back on an internal drive.
>
> However, just to completely convince myself I decided to take a look at Task
> Manager while playing a song with Windows Media Player. Interestingly enough
> every time the jitter occured a spike showed up in the CPU usage of one of
> the svchost.exe processes. So I proceeded to End Task it and sure enough the
> jitter dissapeared when playing the exact same songs where it appeard before.
>
> After ending this particular svchost.exe process, I observed that Windows
> restarts it. The system remains at status quo for 30 seconds then all of a
> sudden the Windows XP theme dissapears, and then restarts. Because of this
> symptom I investigated the Control Panel -> Administrative Tools -> Services,
> table and saw that the Themes service was part of the "svchost.exe -netsvcs"
> executable.
>
> So after a bit of detective work, I think that the solution to this very
> annoying problem lies in restarting one of the services which "svchost.exe
> -netsvcs" is responsible for running. I wonder if anyone else has had this
> problem and if there is a known solution out there?

ss4245
07-09-2005, 09:54 PM
Rereading my post I guess I wasn't very clear about the solution. I changed
the Paging File to being user defined and set it between 700 and 1000 MB.

"ss4245" wrote:

> I believe I've figured out. It turns out that the paging file on the disk is
> to blame. I remembered that prior to purchasing the drive, in order to save
> some space on drive C, switched the paging file size from being defined
> between 700 and 1000 MB to being managed by the system. No massive change in
> free space occured so I didn't change it back. Well, the next day or so I
> went out and got the drive and started noticing the problem.
>
> I think the problem lies in the fact that while the system manages the
> paging file size one of the services which "svchost.exe -netsvcs" runs must
> be periodically spiking in CPU usage. After doing a "tasklist /svc" command
> in a DOS shell window, I see that the service must be one of the following:
> "AudioSrv, Browser, CryptSvc, Dhcp, dmserver, EventSystem,
> FastUserSwitchingCompatibility, helpsvc, lanmanserver, lanmanworkstation,
> Netman, Nla, RasMan, Schedule, seclogon, SENS, SharedAccess,
> ShellHWDetection, srservice, TapiSrv, Themes, TrkWks, winmgmt, wscsvc,
> wuauserv, WZCSVC."
>
> While writing this reply I've been playing a few MP3's with absolutely no
> problems. Anyway, I've learned alot about how Windows works due to this
> problem. For further reference on svchost.exe check out this site:
> http://www.huguesjohnson.com/svchost.html#Stopping%20the%20System%20Event%20Notification%20Service
>
>
>
> "brentromero" wrote:
>
> > I can't wait to hear the solution to your dilemma. I did the same thing but
> > with wma lossless music files. Heck, I filled up a 120 Gb external drive
> > and though I haven't had any problems (yet) I wonder if it doesn't have
> > anything to do with the mp3 compression.
> >
> > I'm also curious about your svchost.exe task. Have you tried to manually
> > disable it to see what happens?
> > --
> > brentromero
> >
> >
> > "ss4245" wrote:
> >
> > > Hi,
> > > I've recently run into a problem playing music stored on a hard drive which
> > > is turning out to have a very convoluted way of winding itself to the very
> > > guts of my operating system.
> > >
> > > I'm running Windows XP Professional SP2 and recently I decided to purchase
> > > an external hard drive to store music on. After an initial error caused by a
> > > faulty USB 2.0 PCI card, I managed to get the drive up and working. I
> > > transferred all of my music onto it and I was excited to try it out. I played
> > > one of the MP3's and about 30 seconds into the song I heard a jarring jitter,
> > > reminiscent of a skip on an old walkman. These errors continued popping up at
> > > random intervals in every single song that I tried to play.
> > >
> > > Since I had never experienced this while the MP3's were stored on an
> > > internal hard drive, I immediately thought that the error must be caused by
> > > the fact that the USB 2.0 port could not keep up with the very high bitrate
> > > of the media. Momentarily disillusioned with my purchase I thought that I
> > > would have to revert back to storing the files back on an internal drive.
> > >
> > > However, just to completely convince myself I decided to take a look at Task
> > > Manager while playing a song with Windows Media Player. Interestingly enough
> > > every time the jitter occured a spike showed up in the CPU usage of one of
> > > the svchost.exe processes. So I proceeded to End Task it and sure enough the
> > > jitter dissapeared when playing the exact same songs where it appeard before.
> > >
> > > After ending this particular svchost.exe process, I observed that Windows
> > > restarts it. The system remains at status quo for 30 seconds then all of a
> > > sudden the Windows XP theme dissapears, and then restarts. Because of this
> > > symptom I investigated the Control Panel -> Administrative Tools -> Services,
> > > table and saw that the Themes service was part of the "svchost.exe -netsvcs"
> > > executable.
> > >
> > > So after a bit of detective work, I think that the solution to this very
> > > annoying problem lies in restarting one of the services which "svchost.exe
> > > -netsvcs" is responsible for running. I wonder if anyone else has had this
> > > problem and if there is a known solution out there?

ss4245
07-09-2005, 09:54 PM
I believe I've figured out. It turns out that the paging file on the disk is
to blame. I remembered that prior to purchasing the drive, in order to save
some space on drive C, switched the paging file size from being defined
between 700 and 1000 MB to being managed by the system. No massive change in
free space occured so I didn't change it back. Well, the next day or so I
went out and got the drive and started noticing the problem.

I think the problem lies in the fact that while the system manages the
paging file size one of the services which "svchost.exe -netsvcs" runs must
be periodically spiking in CPU usage. After doing a "tasklist /svc" command
in a DOS shell window, I see that the service must be one of the following:
"AudioSrv, Browser, CryptSvc, Dhcp, dmserver, EventSystem,
FastUserSwitchingCompatibility, helpsvc, lanmanserver, lanmanworkstation,
Netman, Nla, RasMan, Schedule, seclogon, SENS, SharedAccess,
ShellHWDetection, srservice, TapiSrv, Themes, TrkWks, winmgmt, wscsvc,
wuauserv, WZCSVC."

While writing this reply I've been playing a few MP3's with absolutely no
problems. Anyway, I've learned alot about how Windows works due to this
problem. For further reference on svchost.exe check out this site:
http://www.huguesjohnson.com/svchost.html#Stopping%20the%20System%20Event%20Notification%20Service



"brentromero" wrote:

> I can't wait to hear the solution to your dilemma. I did the same thing but
> with wma lossless music files. Heck, I filled up a 120 Gb external drive
> and though I haven't had any problems (yet) I wonder if it doesn't have
> anything to do with the mp3 compression.
>
> I'm also curious about your svchost.exe task. Have you tried to manually
> disable it to see what happens?
> --
> brentromero
>
>
> "ss4245" wrote:
>
> > Hi,
> > I've recently run into a problem playing music stored on a hard drive which
> > is turning out to have a very convoluted way of winding itself to the very
> > guts of my operating system.
> >
> > I'm running Windows XP Professional SP2 and recently I decided to purchase
> > an external hard drive to store music on. After an initial error caused by a
> > faulty USB 2.0 PCI card, I managed to get the drive up and working. I
> > transferred all of my music onto it and I was excited to try it out. I played
> > one of the MP3's and about 30 seconds into the song I heard a jarring jitter,
> > reminiscent of a skip on an old walkman. These errors continued popping up at
> > random intervals in every single song that I tried to play.
> >
> > Since I had never experienced this while the MP3's were stored on an
> > internal hard drive, I immediately thought that the error must be caused by
> > the fact that the USB 2.0 port could not keep up with the very high bitrate
> > of the media. Momentarily disillusioned with my purchase I thought that I
> > would have to revert back to storing the files back on an internal drive.
> >
> > However, just to completely convince myself I decided to take a look at Task
> > Manager while playing a song with Windows Media Player. Interestingly enough
> > every time the jitter occured a spike showed up in the CPU usage of one of
> > the svchost.exe processes. So I proceeded to End Task it and sure enough the
> > jitter dissapeared when playing the exact same songs where it appeard before.
> >
> > After ending this particular svchost.exe process, I observed that Windows
> > restarts it. The system remains at status quo for 30 seconds then all of a
> > sudden the Windows XP theme dissapears, and then restarts. Because of this
> > symptom I investigated the Control Panel -> Administrative Tools -> Services,
> > table and saw that the Themes service was part of the "svchost.exe -netsvcs"
> > executable.
> >
> > So after a bit of detective work, I think that the solution to this very
> > annoying problem lies in restarting one of the services which "svchost.exe
> > -netsvcs" is responsible for running. I wonder if anyone else has had this
> > problem and if there is a known solution out there?

brentromero
07-09-2005, 09:54 PM
Thanks for the info, big guy. I'm sure that it'll come in handy. I can't
wait to check my own setting!
--
brentromero


"ss4245" wrote:

> Rereading my post I guess I wasn't very clear about the solution. I changed
> the Paging File to being user defined and set it between 700 and 1000 MB.
>
> "ss4245" wrote:
>
> > I believe I've figured out. It turns out that the paging file on the disk is
> > to blame. I remembered that prior to purchasing the drive, in order to save
> > some space on drive C, switched the paging file size from being defined
> > between 700 and 1000 MB to being managed by the system. No massive change in
> > free space occured so I didn't change it back. Well, the next day or so I
> > went out and got the drive and started noticing the problem.
> >
> > I think the problem lies in the fact that while the system manages the
> > paging file size one of the services which "svchost.exe -netsvcs" runs must
> > be periodically spiking in CPU usage. After doing a "tasklist /svc" command
> > in a DOS shell window, I see that the service must be one of the following:
> > "AudioSrv, Browser, CryptSvc, Dhcp, dmserver, EventSystem,
> > FastUserSwitchingCompatibility, helpsvc, lanmanserver, lanmanworkstation,
> > Netman, Nla, RasMan, Schedule, seclogon, SENS, SharedAccess,
> > ShellHWDetection, srservice, TapiSrv, Themes, TrkWks, winmgmt, wscsvc,
> > wuauserv, WZCSVC."
> >
> > While writing this reply I've been playing a few MP3's with absolutely no
> > problems. Anyway, I've learned alot about how Windows works due to this
> > problem. For further reference on svchost.exe check out this site:
> > http://www.huguesjohnson.com/svchost.html#Stopping%20the%20System%20Event%20Notification%20Service
> >
> >
> >
> > "brentromero" wrote:
> >
> > > I can't wait to hear the solution to your dilemma. I did the same thing but
> > > with wma lossless music files. Heck, I filled up a 120 Gb external drive
> > > and though I haven't had any problems (yet) I wonder if it doesn't have
> > > anything to do with the mp3 compression.
> > >
> > > I'm also curious about your svchost.exe task. Have you tried to manually
> > > disable it to see what happens?
> > > --
> > > brentromero
> > >
> > >
> > > "ss4245" wrote:
> > >
> > > > Hi,
> > > > I've recently run into a problem playing music stored on a hard drive which
> > > > is turning out to have a very convoluted way of winding itself to the very
> > > > guts of my operating system.
> > > >
> > > > I'm running Windows XP Professional SP2 and recently I decided to purchase
> > > > an external hard drive to store music on. After an initial error caused by a
> > > > faulty USB 2.0 PCI card, I managed to get the drive up and working. I
> > > > transferred all of my music onto it and I was excited to try it out. I played
> > > > one of the MP3's and about 30 seconds into the song I heard a jarring jitter,
> > > > reminiscent of a skip on an old walkman. These errors continued popping up at
> > > > random intervals in every single song that I tried to play.
> > > >
> > > > Since I had never experienced this while the MP3's were stored on an
> > > > internal hard drive, I immediately thought that the error must be caused by
> > > > the fact that the USB 2.0 port could not keep up with the very high bitrate
> > > > of the media. Momentarily disillusioned with my purchase I thought that I
> > > > would have to revert back to storing the files back on an internal drive.
> > > >
> > > > However, just to completely convince myself I decided to take a look at Task
> > > > Manager while playing a song with Windows Media Player. Interestingly enough
> > > > every time the jitter occured a spike showed up in the CPU usage of one of
> > > > the svchost.exe processes. So I proceeded to End Task it and sure enough the
> > > > jitter dissapeared when playing the exact same songs where it appeard before.
> > > >
> > > > After ending this particular svchost.exe process, I observed that Windows
> > > > restarts it. The system remains at status quo for 30 seconds then all of a
> > > > sudden the Windows XP theme dissapears, and then restarts. Because of this
> > > > symptom I investigated the Control Panel -> Administrative Tools -> Services,
> > > > table and saw that the Themes service was part of the "svchost.exe -netsvcs"
> > > > executable.
> > > >
> > > > So after a bit of detective work, I think that the solution to this very
> > > > annoying problem lies in restarting one of the services which "svchost.exe
> > > > -netsvcs" is responsible for running. I wonder if anyone else has had this
> > > > problem and if there is a known solution out there?


Windows Media Player and Svchost.exe -netsvcs