Good catch!

Add this one to the book of "why never to hardcode addresses or names of 
devices not directly under the code's control"

On Aug 24, 2013, at 18:16, "J- P" <[email protected]> wrote:

> Ok, so after looking at thousands of procmon lines , I finally figured out 
> what was causing it-
> This is not the normal bug thats been around , but it did relate to an HP 
> printer.
> 
> What tipped me off was the spools process not doing anything other than 
> "process profiling" no regquery no create , no file create  and no imagepath 
> , 
> 
> So I ran procmon on a desktop and there it was,  Spoolsv.eve doing what it 
> should be , RegOpen, FileSystemControl, Regcreate, etc.....
> 
> "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Print\Providers\Client 
> Side Rendering Print 
> Provider\Servers\Print_Server\Printers\{3B2A2A60-72A2-4B70-99F3-1FE3E72FDB85}\PrinterDriverData
> 
> HKCU\Printers\Connections\,,Print_Server_Name,Shared_Printer_Name
> 
> and heck of alot more entries-
> 
> 
> Evidently the genius writing the front end of the DB decided to make some 
> upgrades (without telling anyone), like hardcoding  default printers for 
> various reports, queries etc.. and since said printers did not exist on Box , 
> thats when MSIExec would kickoff and attempt the installation of the HP 
> Printers.
> 
> After installing ALL the printers on the box, print previews take about  1 
> second to load, and no MSIexec.
> 
> This will be one costly lesson to the client :) as I spent quite sometime on 
> this.
> 
> Thanks to everyone for all the feedback.
> 
> And now time for some cognac
> 
> Thanks again
> 
>  
>  
>  
>  
>  
>  
>  
>  
>  
>  
> Jean-Paul Natola
>  
> 
> 
> From: [email protected]
> To: [email protected]
> Date: Thu, 22 Aug 2013 08:25:47 -0400
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
> Not local to the Citrix server, local to the RDP or Citrix client.
> 
>  
> 
> From: [email protected] [mailto:[email protected]] 
> On Behalf Of Daniel Chenault
> Sent: Wednesday, August 21, 2013 11:14 PM
> To: [email protected]
> Subject: Re: [NTSysADM] MSIEXEC CPU on TS
> 
>  
> 
> Ahhhh... okay. Major bummer.
> 
>  
> 
> If this is only for local attach printers then the only solution I see until 
> MS issues a patch is for the RDP/Citrix server to not have any local attach 
> printers.
> 
>  
> 
> From: J- P
> 
> Sent: Wednesday, August 21, 2013 3:20 PM
> 
> To: [email protected]
> 
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
>  
> 
> think I may have stumbled onto something,I have afew 1000 of these, however, 
> they are not identical they seem to increment and all result in "NO MORE 
> ENTRIES"
> 
> HKU\.DEFAULT\Software\Classes\CLSID\{CAFEEFAC-0014-0002-0027-ABCDEFFEDCBB}\InprocServer32
> HKU\.DEFAULT\Software\Classes\CLSID\{CAFEEFAC-0014-0002-0027-ABCDEFFEDCBB}
> HKU\.DEFAULT\Software\Classes\CLSID\{CAFEEFAC-0014-0002-0028-ABCDEFFEDCBA}\InprocServer32
> HKU\.DEFAULT\Software\Classes\CLSID\{CAFEEFAC-0014-0002-0028-ABCDEFFEDCBA}
> 
> 
> 
>  
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>  
>  
>  
>  
>  
>  
> Jean-Paul Natola
>  
> 
> 
> From: [email protected]
> To: [email protected]
> Date: Wed, 21 Aug 2013 13:44:16 -0400
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
> That’s not the problem.
> 
>  
> 
> What happens is that whenever a remote user (either citrix or RDP) prints (or 
> logs on, I forget), the local printers FOR ALL LOGGED IN USERS get GUIDs 
> assigned that are unique for that user’s session.  The stupid HP print 
> drivers (maybe other too) create  keys under 
> HKU\.Default\Software\Hewlett-Packard  corresponding to ALL THESE GUIDS. This 
> rapidly results in thousands of keys.
> 
>  
> 
> For some reason, msiexec.exe likes to fully traverse that key OVER and OVER 
> and OVER resulting in msiexec using 100% of one CPU AND msiexec taking 
> forever to get anything done.
> 
>  
> 
> From: [email protected] [mailto:[email protected]] 
> On Behalf Of Daniel Chenault
> Sent: Wednesday, August 21, 2013 12:53 PM
> To: [email protected]
> Subject: Re: [NTSysADM] MSIEXEC CPU on TS
> 
>  
> 
> Maybe I’m missing something or need more coffee...
> 
>  
> 
> Set up a group of the RDP users. Deny those users access to those printers 
> using the printer properties Security tab.
> 
>  
> 
> From: J- P
> 
> Sent: Tuesday, August 20, 2013 4:29 PM
> 
> To: [email protected]
> 
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
>  
> 
> on the TS box itself-
>  
> I guess disabling MSIExec wouldn't help either
>  
> I'm up to 27 new guids in the last hour
> 
>  
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>  
>  
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>  
>  
>  
>  
>  
> Jean-Paul Natola
>  
> 
>  
> 
> From: [email protected]
> To: [email protected]
> Subject: Re: [NTSysADM] MSIEXEC CPU on TS
> Date: Tue, 20 Aug 2013 16:21:07 -0500
> 
> Is it enumerating printers local to the TS server or the workstation?
> 
>  
> 
> From: J- P
> 
> Sent: Tuesday, August 20, 2013 4:13 PM
> 
> To: [email protected]
> 
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
>  
> 
> I get that, the issue is that when a user logs into TS, the minute they try 
> to print or print preview their first job (its a report from Access ) - 
> MSIExec hits 100% till the keys get enumerated, during that time ,everyone on 
> TS feels it and you know how it is to just watch the hour glass 3-4 minutes 
> seems like an eternity to the user waiting for it.
>  
>  
> Can I just disable the server from even attempting to enumerate, the option 
> of upgrading to a new  OS is not really viable at the moment.
> 
>  
>  
>  
>  
>  
>  
> Jean-Paul Natola
>  
> 
>  
> 
> From: [email protected]
> To: [email protected]
> Date: Tue, 20 Aug 2013 17:00:15 -0400
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
> Just put the GP in place and relax. You can’t manually get rid of them – they 
> just keep coming back.
> 
>  
> 
> From: [email protected] [mailto:[email protected]] 
> On Behalf Of J- P
> Sent: Tuesday, August 20, 2013 4:56 PM
> To: [email protected]
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
>  
> 
> I did a manual delete of the hP key, and sure enough after logging into to 
> the TS when I went to do a "pdf preview" it hung for about 4 minutes- and 
> then about 11 new keys showed up 
>  
>  
> I'm open to options , users dont actually need to print over TS, but they do 
> require print preview for the PDF's they email-
>  
> ROCK> me < HARD PLACE
>  
> open to all suggestions
>  
> thanks 
>  
> 
>  
> 
> From: [email protected]
> To: [email protected]
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> Date: Tue, 20 Aug 2013 15:54:06 -0400
> 
> Yes they are in HP gazillion 
>  
> Can you share your policy, did it delete before  or after user logon/off
>  
> And more importantly did it prevent MSIEXEC from shooting to 100 during a new 
> logon?
>  
>  
> THANKS SO MUCH
>  
> 
> 
>  
>  
>  
>  
>  
>  
>  
>  
>  
>  
> Jean-Paul Natola
>  
> 
>  
> 
> From: [email protected]
> To: [email protected]
> Date: Tue, 20 Aug 2013 15:49:47 -0400
> Subject: RE: [NTSysADM] MSIEXEC CPU on TS
> 
> IIRC, my problem is HP printers and they create gazillions of keys under 
> HKU\.Default\Software\HewlettPackard.
> 
>  
> 
> I simply created a group policy object that deletes the  whole 
> HKU\.Default\Software\HewlettPackard  key.
> 
>  
> 
> From: [email protected] [mailto:[email protected]] 
> On Behalf Of J- P
> Sent: Monday, August 19, 2013 4:21 PM
> To: [email protected]
> Subject: [NTSysADM] MSIEXEC CPU on TS
> 
>  
> 
> I realize this is has been around for a while, but it seems that there still 
> has not been an actual fix for this, so i am asking if anyone has had any 
> successful work-arounds, besides upgrading the server
> 
> http://social.technet.microsoft.com/Forums/windowsserver/en-US/c16e01d6-4b64-4dad-ba8f-479c9fea85c0/high-cpu-usage-in-msiexec-due-to-enumeration-of-print-guids-in-hkudefaultsoftware
> 
> I literally have thousands of these guids on the TS
> 
> Environment, 2008 32 bit TS with Citrix fundamentals 
> 
> 
> Any thoughts are appreciated 
>  
>  

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