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w3wp.exe is running at 99%

New Member
Posts: 9
Country: USA

w3wp.exe is running at 99%

My CPU is pegged at 100% because w3wp.exe is running at 99% . I beleive it has to do with IIS, but I cannot find any info on it.  If I restart my system it will slow down for a while, then go back to 99%.  Can I kill this service?

 

Celia Alfano

Moderator
Posts: 4,395
Country: USA

Re: w3wp.exe is running at 99%

Celia,

 

Yes, w3wp.exe is the IIS process.  Are you running ACT! for Web or ACT! internet sync service on the machine?  Are any other applications using IIS?

Nickel Super Contributor
Posts: 584
Country: USA

Re: w3wp.exe is running at 99%

If you are running Windows Server 2003, take a look at the following Microsoft kb article.

 

The W3wp.exe process consumes up to 99 percent of the CPU resources every several minutes on a Windo...

 

Also, here is some more info on the process.

w3wp.exe description

New Member
Posts: 9
Country: USA

Re: w3wp.exe is running at 99%

I am only running ACT Premium for web on that server, no other applications or services that use IIS.  My O/S is Windows Server 2003 Web Edition. If you restart the server or do an iisreset, then I am good for a few days. 

I contacted ACT support, they told me I should try reinstalling IIS, which would require me to reinstall ACT.  They have no known fix. 

 

Microsoft suggests in their KB; http://support.microsoft.com/default.aspx/kb/900243 that "This problem occurs because of an incorrect algorithm in the Wldap32.dll module. This incorrect algorithm copies the memory too frequently. This behavior causes a performance problem." They also say it refers to a problem with exchange and OWA.  I do not have exchange on this box. I did make sure that I had the recommended Service Packs on the server and it has not helped.

 

Celia

Moderator
Posts: 4,395
Country: USA

Re: w3wp.exe is running at 99%

Celia,

 

Reinstalling IIS will not require you to reinstall ACT!.  YOu will have to recreate the ACT! for Web virtual directories in IIS.

 

How to Manually Create and Configure a Web Site and Virtual Directory for ACT! Premium for Web

New Member
Posts: 9
Country: USA

Re: w3wp.exe is running at 99%

Thank You.  I was misinformed by the Tech I spoke with yesterday.  I will give this a try.