Question

create a page file

Asked by: x013229

I'm trying to create a page file with VBScript that is set to zero and it's not working.  I can change current size without a problem.  Attached is the code I use to change the size:

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
 
Set colPageFiles = objWMIService.ExecQuery _
    ("Select * from Win32_PageFileSetting")
 
For Each objPageFile in colPageFiles
    objPageFile.InitialSize = 300
    objPageFile.MaximumSize = 600
    objPageFile.Put_
Next

                                  
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Asked On
2008-05-23 at 10:47:54ID23428390
Tags

Microsoft

,

Windows 2003

,

Terminal Server

,

create a page file

Topics

Windows 2003 Server

,

VB Script

,

Active Directory

Participating Experts
2
Points
0
Comments
13

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Answers

 

by: canaliPosted on 2008-05-23 at 11:58:12ID: 21634807

The script is not working because the minimun size for page file is 2 (megabyte)
Bye Gas

 

by: canaliPosted on 2008-05-23 at 12:08:23ID: 21634909

 

by: purplepomegranitePosted on 2008-05-23 at 15:25:53ID: 21636221

Have you tried this method? http://www.dbforums.com/archive/index.php/t-730197.html

There is a minimum size of 2Mb of pagefile on the system drive to enable debugging in the case of a Windows error.  However, the minimum size is 0 - it's just that if there isn't 2Mb available on the system drive, you won't get any error information recorded in the event of a blue screen.

 

by: canaliPosted on 2008-05-23 at 15:57:19ID: 21636533

purplepomegranite:
Have u seen is the same vbs code used by x013229!!!

 

by: purplepomegranitePosted on 2008-05-23 at 23:25:12ID: 21638041

No, it's slightly different, which is why I posted it - the method of getting the pagefile objects is what is different.

on error resume next
 
dim pageFiles, pageFile, OSes, OS
set pageFiles=
getObject("winmgmts:{(CreatePageFile)}").instancesof("Win32_PageFileSetting"
)
for each pageFile in pageFiles
  pageFile.initialSize = 300
  pageFile.maximumSize = 300
  pageFile.put_()
next
                                              
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by: canaliPosted on 2008-05-24 at 02:49:05ID: 21638473

Look in your server2003  for c:\windows\system32\pagefileconfig.vbs
pagefileconfig.vbs" /create  /I 3 /M 300 /vo C:


purplepomegranite: the code  is only a different way to call the same wmi CLASS and is WRONG!!!

this code is  slightly different ...
  wmic path Win32_PageFileSetting set InitialSize=300,MaximumSize=300
BUT is the same: a wmi call
 Using  Win32_PageFileSetting wmi class you can't create 0 byte a  pagefile :you get error 0x8004102b


'The corrected code!!!
option explicit
 
' Declare the variables
dim pageFiles, pageFile, OSes, OS
' 49 - Get all instances of Win32_PageFileSettings, making sure to request CreatePageFile priveleges
' CreatePageFile is a privilege Required to modify a paging file.
' with Win32_PageFileSetting yuo can only change the page file settings!!!!!!!!!!!!!
 
set pageFiles=NOTHING
set pageFiles =getObject("winmgmts:{(CreatePageFile)}").instancesof("Win32_PageFileSetting")
 
' 50 - enumerate the instances
for each pageFile in pageFiles
' 51 - assign initialSize property 300MB
pageFile.initialSize = 300
' 52 - assign maximumSize property 300MB
pageFile.maximumSize = 300
' 53 - Use the PUT_ method to update the settings on the computer
pageFile.put_()
' 54 - next - close the enumeration loop
next
                                              
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by: canaliPosted on 2008-05-24 at 03:08:27ID: 21638494

this script create the smallest pagefile in c:
Bye Gas

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colPageFiles = objWMIService.ExecQuery _
("Select * from Win32_PageFileSetting")
For Each objPageFile in colPageFiles
objPageFile.name="c:\pagefile.sys"
objPageFile.InitialSize = 2
objPageFile.MaximumSize = 2
objPageFile.put_
Next
                                              
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by: purplepomegranitePosted on 2008-05-24 at 03:10:51ID: 21638499

Hi Canali,

Ok, you've confused me now, lol.  The code you've posted above is exactly the same as that I copied from the link above (except the lines have been sorted out - I didn't notice they'd copied funny)?

It makes sense that a WMI call to create a pagefile of 0Mb fails really - it is the same as not having a pagefile.  My point above (which I should have thought about before I made it!) was because I thought you were referring to the warning you get when you remove the pagefile from the system volume (about requiring 2Mb minimum on the system volume for debugging info).

 

by: canaliPosted on 2008-05-24 at 04:24:13ID: 21638654

look better!!
yes is the code I copied  from your link but I CORRECTED it!!

 

by: purplepomegranitePosted on 2008-05-24 at 05:03:08ID: 21638753

You mean the line breaks?  Or am I missing something?!  

 

by: x013229Posted on 2008-06-05 at 13:45:42ID: 21723791

Thank you for all your input :) I found out that with Windows 2003 the minimum size you can set a page file is 16MB or disable it.  I used the following code to set page to minimum, this for imaging purposes and it worked. The script also reboots the machine!

Option Explicit
Dim strComputer
Dim strShutDown,objShell
Dim strping
Dim wshShell
Dim mycommand
Dim objFSO
Dim objWMIService
Dim colPageFiles
Dim objPageFile
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colPageFiles = objWMIService.ExecQuery _
    ("Select * from Win32_PageFileSetting")
For Each objPageFile in colPageFiles
    objPageFile.InitialSize = 16
    objPageFile.MaximumSize = 16
    objPageFile.Put_
Next
WScript.Sleep 10000
strShutdown = "shutdown.exe -r -f -t 3 -m \\" & strComputer
set objShell = CreateObject("WScript.Shell") 
objShell.Run strShutdown, 0, false
                                              
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by: canaliPosted on 2008-06-05 at 13:54:56ID: 21723886

:: this is the same via batch
:: setnreboot.cmd
@echo off
setlocal
set pc=%computername%
wmic /NODE:"%pc%" path Win32_PageFileSetting set InitialSize=16,MaximumSize=16
shutdown.exe -r -f -t 3 \\%pc%
::bye gas

20120131-EE-VQP-002

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