Client sundely use 100 % CPU disturb the Navision

kmb@ah-bolte.dk

Hey

I have install Navision 4.01 on a Windows 2003 Domain Controller, we have 30 Microsoft Business solutions client/native Navision DB , when the client is running sundely the cpu uassage get to 100 % and the screen jump and then delete the laste line the user have write is gone. I have install the servicepack 1, but that not solved our problem.The server have 2 GB RAM. The problem is on all the client.

Kristina

kuju

Kristina,


Is this when the user does a particular function?

Do you also have some specifications on the client?
The performance of a Navision chain is as strong as the weakest client....

How is the server.exe or the SQL reacting on this client process?

kmb@ah-bolte.dk

Kuju

Thanks

No it seam not to be when the user does a particular function?, I have looked at the processes and it is the svhost process there give the 100 % cpu usage. ??

The client is 847 MHZ, ram 512 mb.

The server.exe service is running on Windows 2003 server and the Navision client is install local on the clients. SQL is reacting via TCP/IP.

kine

Sorry, I do not understad - which Database are you using Native or MS SQL? (in your first post you wrote that Native, now you are talking about SQL...) - I assume the Native and you wanted to wrote that the DB communicate through TCP/IP... :-k

kuju

Kristina,

Are you sure it is svhost.exe? or is it svChost.exe
If you google on svhost you see that this is a virus!
svChost is a windows file!

DenSter

No no no no.... under normal conditions, svchost is definately NOT a virus, and you should leave it alone. Check out this link to read about the process.

If the file is stored somewhere else than your system32 folder, then it MIGHT be related to a virus, but still you don't know for sure. Google it yourself and read all about it, there's a ton of information on this process.

<edit>
I found this article later, it describes the 100% CPU utilization.
</edit>

Timo_Lässer

DenSter wrote:

[...]
<edit>
I found this article later, it describes the 100% CPU utilization.
</edit>

Very important part of the text:

Svchost and Svchost.exe - Crashs, CPU maximization, viruses, exploits and more. wrote:

[...]
Let me tell you what it is not: On Windows XP, 2000 and 2003, svchost is not a virus. On those systems svchost is a required system component. If you happen to successfully delete it, your system will not run. [...]

Don't delete svchost.exe. Don't even think about it. [Important: do not confuse svchost, which we are discussing here, with scvhost, which has two letters transposed. They are not the same thing. The presence of scvhost may indicate a virus.]
[...]

DenSter

Exactly, that is a very important part of the message. There are so many malicious processes with almost identical names that it is easy to do serious damage.

If it it called svchost (with the v first and then the c, and in lower case) then it is an essential windows component that will cause your system to not function very well if you remove it.

Note that the legitimate svchost should be in your system32 folder. If you have a process called svchost in another folder, that MIGHT be related to a virus.

Then, there are also processes that are called SVCHOST (note that it is spelled the same, only upper case, that does make a difference, because the Windows one is lower case), or svhost, or scvhost (with the c first and then the v), and all of these have associations with viruses.

There are many things you can do to determine if you indeed have a virus, so DO NOT [-X just go and delete a bunch of services and/or files without determining first with certainty that it is indeed a virus.

Please be very careful. I would even get an expert to do this for you.

kmb@ah-bolte.dk

Thank you very much for all your answers. I am sorry that I did not spell the name correctly it is svchost and we don’t have a virus, I am sure, the file is located in the right directory windows/system32.We don’t have the files svhost or scvhost located in our system.

We are using the native Navision DB and yes we communicate through TCP/IP

frankmortensen

Do you have firewalls installed on the the PC's running Navision clients?
If so try to disable the firewall on one of the PC's temporarily - start the Navision client on this PC and see if that helps.

/Frank

kmb@ah-bolte.dk

kmb@ah-bolte.dk wrote:

Hey

I have install Navision 4.01 on a Windows 2003 Domain Controller, we have 30 Microsoft Business solutions client/native Navision DB , when the client is running sundely the cpu uassage get to 100 % and the screen jump and then delete the laste line the user have write is gone. I have install the servicepack 1, but that not solved our problem.The server have 2 GB RAM. The problem is on all the client.

Kristina

Thanks for your answer; I have solved the issue it was our policy there have some bug.

Phenno

little OT,

svchost.exe is a "container" for services. if someone has a problem with utilization of one of svchosts (usually there's several of them active in tasklist), he/she should unhide PID column in task list, wrote it down, open command prompt and type: tasklist /svc

it will show them which svchost contain what services and with PID information you can find your svchost.

at least, you can narrow down a search for problematic service on to few services only.