Vista - Query folder backup operator

Hi,

I need to write a vbscript to list each file in a windows xp machine.
I made a vbscript using filesystemobject, but I obtain a "Permission
denied" when the folder has access permission only for the owner.

I execute the script using the SYSTEM, or an administrator user, but I
had the same error.

Searching on Internet I've found that if the program use the backup
operator permissions, it would be able to access the folder content,
but my vbscript isn't able to access. On the other hand, testing the
robocopy resource kit application I've notice that robocopy is able to
access the folder.

I've use the processmonitor application (http://technet.microsoft.com/
en-us/sysinternals/bb896645.aspx) to compare the system calls used by
robocopy and my vbscript. The difference is that robocopy calls
createfile win32 function using a "open for backup" option, but my
vbscript doesn't do it.

Does anybody know if I could write a vbscript, using filesystemobject
or other mechanism, to access a folder using “open for backup”
option?.

Thank you very much for your help.

Regards.

Juan

"Juan" <jvaleromtnez@xxxxxx> wrote in message
news:b93de9e4-a048-49c1-bf7a-deb791fd3874@xxxxxx
Hi,

I need to write a vbscript to list each file in a windows xp machine.
I made a vbscript using filesystemobject, but I obtain a "Permission
denied" when the folder has access permission only for the owner.

I execute the script using the SYSTEM, or an administrator user, but I
had the same error.

Searching on Internet I've found that if the program use the backup
operator permissions, it would be able to access the folder content,
but my vbscript isn't able to access. On the other hand, testing the
robocopy resource kit application I've notice that robocopy is able to
access the folder.

I've use the processmonitor application (http://technet.microsoft.com/
en-us/sysinternals/bb896645.aspx) to compare the system calls used by
robocopy and my vbscript. The difference is that robocopy calls
createfile win32 function using a "open for backup" option, but my
vbscript doesn't do it.

Does anybody know if I could write a vbscript, using filesystemobject
or other mechanism, to access a folder using “open for backup”
option?.

Thank you very much for your help.

Regards.

Juan
===================
Sorry, can't tell without seeing the code and knowing which line generates
the error message.

On 28 abr, 11:53, "Pegasus [MVP]" <n...@xxxxxx> wrote:
Hi,

Here you have the sample I use:

Set FSO = CreateObject ("Scripting.FileSystemObject")
strDir = "e:\hpadmin"
Set objDir = FSO.GetFolder(strDir)
getInfo(objDir)

Sub getInfo(pCurrentDir)
For Each aItem In pCurrentDir.Files
wscript.Echo aItem.Name
Next

For Each aItem In pCurrentDir.SubFolders
getInfo(aItem)
Next
End Sub

Error message "Permission denied" is throw in the "For Each aItem In
pCurrentDir.Files" sentence.

Could you help me?

I really appreciate your help.

Regards

Juan.

"Juan" <jvaleromtnez@xxxxxx> wrote in message
news:5da535b6-8758-405b-a4a2-e3204e192b18@xxxxxx
On 28 abr, 11:53, "Pegasus [MVP]" <n...@xxxxxx> wrote:
Hi,

Here you have the sample I use:

Set FSO = CreateObject ("Scripting.FileSystemObject")
strDir = "e:\hpadmin"
Set objDir = FSO.GetFolder(strDir)
getInfo(objDir)

Sub getInfo(pCurrentDir)
For Each aItem In pCurrentDir.Files
wscript.Echo aItem.Name
Next

For Each aItem In pCurrentDir.SubFolders
getInfo(aItem)
Next
End Sub

Error message "Permission denied" is throw in the "For Each aItem In
pCurrentDir.Files" sentence.

Could you help me?

I really appreciate your help.

Regards

Juan.

===============

I tested your script as it is and it worked perfectly. Perhaps you have a
protected file or folder inside "e:\hpadmin". I could get it to fail if I
allowed it to examine the folder "System Volume Information", which is a
protected folder.

On 28 abr, 15:47, "Pegasus [MVP]" <n...@xxxxxx> wrote:Thank you again Pegasus.

I know that the script works fine, but, as you say, my problem is with
the protected folders. I need to access every file in the computer,
regardless of the folder permissions. As I said in my previous
message, if I used the robocopy resource kil application, I could
access the folder content. I only need to list every files, I don't
need to access the file content.

Using the processmonitor application, I've noticed that robocopy
access the folder using the "open for backup" option. My question
is... Could I use the "open for backup" option in a vbscript? How
could I specify this option?.

Again, thank you very much for your help.

Regards

"Juan" <jvaleromtnez@xxxxxx> wrote in message
news:2ae9a81a-e584-4cf5-8651-f670336f3378@xxxxxx

Thank you again Pegasus.

I know that the script works fine, but, as you say, my problem is with
the protected folders. I need to access every file in the computer,
regardless of the folder permissions. As I said in my previous
message, if I used the robocopy resource kil application, I could
access the folder content. I only need to list every files, I don't
need to access the file content.

Using the processmonitor application, I've noticed that robocopy
access the folder using the "open for backup" option. My question
is... Could I use the "open for backup" option in a vbscript? How
could I specify this option?.

Again, thank you very much for your help.

Regards

===================

WMI should be able to do it but I can't quite get it to work:

Set oWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate,(Backup)}!\\.\root\cimv2")
Set oFolder = oWMIService.Get("Win32_Directory.Name='e:\System Volume
Information'")
RetCode = oFolder.copy("c:\Test")

See also here: http://msdn.microsoft.com/en-us/libr...58(VS.85).aspx.
Post again if/when you find the solution!

On Apr 28, 11:40*pm, "Pegasus [MVP]" <n...@xxxxxx> wrote:WMI may solve my problem, but I have to control the performance of the
script, I mean. the script must be executed with the lowest priority,
so the user mustn't be concious that the script is running.

If I used WMI, the query to search files (WQL) would be executed
without the control of my script, so the query could take longer and
influence the performance of the computer.

Thank you very much for your help. If I found the solution, I would
post it.