XML in ASP

[Brian Burgess]

Hi All,

Anyone having trouble 'Load'ing xml files with 'Msxml2.DOMDocument' in ASP?
The Server is IIS 5.1 and client is PocketPC2002 (Pocket IE).

The 'Load' method is always returning 'False' for me in the following snip:
********************************************************
<%
Dim xmlAdminCfgDoc
Dim fError
Dim root
Dim acctlist
Dim nCount
Set xmlAdminCfgDoc = Server.CreateObject("Msxml2.DOMDocument")
xmlAdminCfgDoc.async = False
fError = xmlAdminCfgDoc.Load("C:\Inetpub\wwwroot\MyWeb\AdminCfg.xml")
If fError = True then
Set root = xmlAdminCfgDoc.documentElement
Set acctlist = root.childNodes
nCount = acctlist.length
End If
%>
********************************************************

Thanks in advance...

-BB

 

[Brian Burgess]

There is no error when loading in IE... I tried that before starting to code
the ASP actually.. :-(

 

[Bob Barrows]

You should use a URL, not a file system path, in the Load method. From MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load failed.

HTH,
Bob Barrows

There is no error when loading in IE... I tried that before starting
to code
the ASP actually.. :-(



http://msdn.microsoft.com/library/en-us/xmlsdk30/htm/xmobjxmldomparseerror.asp
http://msdn.microsoft.com/library/en-us/xmlsdk30/htm/xmobjpmexmldomparseerror.asp

http://www.microsoft.com/technet/scriptcenter/scrguide/sagsas_overview.asp

 

[Brian Burgess]

It can be a file system path as well. The following is the full example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load failed.

Example
The following Microsoft Visual Basic® example creates a DOMDocument object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to VBScript in
ASP), so I am wondering if there are any known and undocumented issues ...

thanks anyways!

-BB

 

[Bob Barrows]

No, "books.xml" IS a URL. Haven't you ever used Response.Redirect
"newpage.asp" ? This will redirect to newpage.asp as long as it's in the
same website folder as the page in which this line of code is run. It's
known as a relative path. The same thing is done with anchor tags.

Bob Barrows

It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load failed.

Example
The following Microsoft Visual Basic® example creates a DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB

You should use a URL, not a file system path, in the Load method.
From MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

http://msdn.microsoft.com/library/e...-us/xmlsdk30/htm/xmobjpmexmldomparseerror.asp

http://www.microsoft.com/technet/scriptcenter/scrguide/sagsas_overview.asp

 

[Bob Barrows]

You know, I just looked at some of my old code and realized that I've used
file-system paths in my calls to the Load method. Have you tried using
Server.MapPath to make sure you've got the path correct? Here's an example
from one of my apps:

s = server.MapPath("CurrencyRates") & "\curr" & FormatDate(Date(), 1) &
".xml"
DOM1.load s

HTH,
Bob Barrows

It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load failed.

Example
The following Microsoft Visual Basic® example creates a DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB

You should use a URL, not a file system path, in the Load method.
From MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

http://msdn.microsoft.com/library/e...-us/xmlsdk30/htm/xmobjpmexmldomparseerror.asp

http://www.microsoft.com/technet/scriptcenter/scrguide/sagsas_overview.asp

 

[Brian Burgess]

So it should work as coded? .. or should I use a relative path with (or
without) the Server.MapPath in the Load?

uhg .... I'm about ready to pull out my hair...

-BB

No, "books.xml" IS a URL. Haven't you ever used Response.Redirect
"newpage.asp" ? This will redirect to newpage.asp as long as it's in the
same website folder as the page in which this line of code is run. It's
known as a relative path. The same thing is done with anchor tags.

Bob Barrows

It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load failed.

Example
The following Microsoft Visual Basic® example creates a DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB

You should use a URL, not a file system path, in the Load method.
From MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

Brian Burgess wrote:
There is no error when loading in IE... I tried that before starting
to code
the ASP actually.. :-(


Brian Burgess wrote:
Hi All,

Anyone having trouble 'Load'ing xml files with
'Msxml2.DOMDocument'
in ASP? The Server is IIS 5.1 and client is PocketPC2002 (Pocket
IE).

The 'Load' method is always returning 'False' for me in the
following
snip:


IXMLDOMParseError (MSXML 3.0 SDK)

http://msdn.microsoft.com/library/e...net/scriptcenter/scrguide/sagsas_overview.asp

 

[Brian Burgess]

Well that is the first method I used before attempting to the absolute path
method showing in my original post. It is just that (it seems) that no
method is working IN ASP. even an xml data island, or XMLHTTP is not
working ... simply does not load the file ................................
UGH!

You know, I just looked at some of my old code and realized that I've used
file-system paths in my calls to the Load method. Have you tried using
Server.MapPath to make sure you've got the path correct? Here's an example
from one of my apps:

s = server.MapPath("CurrencyRates") & "\curr" & FormatDate(Date(), 1) &
".xml"
DOM1.load s

HTH,
Bob Barrows

It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load failed.

Example
The following Microsoft Visual Basic® example creates a DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB

You should use a URL, not a file system path, in the Load method.
From MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

Brian Burgess wrote:
There is no error when loading in IE... I tried that before starting
to code
the ASP actually.. :-(


Brian Burgess wrote:
Hi All,

Anyone having trouble 'Load'ing xml files with
'Msxml2.DOMDocument'
in ASP? The Server is IIS 5.1 and client is PocketPC2002 (Pocket
IE).

The 'Load' method is always returning 'False' for me in the
following
snip:


IXMLDOMParseError (MSXML 3.0 SDK)

http://msdn.microsoft.com/library/e...net/scriptcenter/scrguide/sagsas_overview.asp

 

[Bob Barrows]

Strip out any confidential data and send me the file offline so I can take a
whack at it.

Bob Barrows

Well that is the first method I used before attempting to the
absolute path method showing in my original post. It is just that
(it seems) that no
method is working IN ASP. even an xml data island, or XMLHTTP is
not
working ... simply does not load the file
................................
UGH!

You know, I just looked at some of my old code and realized that
I've used file-system paths in my calls to the Load method. Have you
tried using Server.MapPath to make sure you've got the path correct?
Here's an example from one of my apps:

s = server.MapPath("CurrencyRates") & "\curr" & FormatDate(Date(),
1) & ".xml"
DOM1.load s

HTH,
Bob Barrows

It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML
file. Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

Example
The following Microsoft Visual Basic® example creates a DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB


You should use a URL, not a file system path, in the Load method.
From
MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML
file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

Brian Burgess wrote:
There is no error when loading in IE... I tried that before
starting
to code
the ASP actually.. :-(


Brian Burgess wrote:
Hi All,

Anyone having trouble 'Load'ing xml files with
'Msxml2.DOMDocument'
in ASP? The Server is IIS 5.1 and client is PocketPC2002 (Pocket
IE).

The 'Load' method is always returning 'False' for me in the
following
snip:


IXMLDOMParseError (MSXML 3.0 SDK)

http://msdn.microsoft.com/library/e...-us/xmlsdk30/htm/xmobjpmexmldomparseerror.asp

http://www.microsoft.com/technet/scriptcenter/scrguide/sagsas_overview.asp

 

[Brian Burgess]

ok .. mailed it to '(e-mail address removed)'..

Strip out any confidential data and send me the file offline so I can take a
whack at it.

Bob Barrows

Well that is the first method I used before attempting to the
absolute path method showing in my original post. It is just that
(it seems) that no
method is working IN ASP. even an xml data island, or XMLHTTP is
not
working ... simply does not load the file
................................
UGH!

You know, I just looked at some of my old code and realized that
I've used file-system paths in my calls to the Load method. Have you
tried using Server.MapPath to make sure you've got the path correct?
Here's an example from one of my apps:

s = server.MapPath("CurrencyRates") & "\curr" & FormatDate(Date(),
1) & ".xml"
DOM1.load s

HTH,
Bob Barrows

Brian Burgess wrote:
It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML
file. Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

Example
The following Microsoft Visual Basic® example creates a DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB


You should use a URL, not a file system path, in the Load method.
From
MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML
file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

Brian Burgess wrote:
There is no error when loading in IE... I tried that before
starting
to code
the ASP actually.. :-(


Brian Burgess wrote:
Hi All,

Anyone having trouble 'Load'ing xml files with
'Msxml2.DOMDocument'
in ASP? The Server is IIS 5.1 and client is PocketPC2002 (Pocket
IE).

The 'Load' method is always returning 'False' for me in the
following
snip:


IXMLDOMParseError (MSXML 3.0 SDK)

http://msdn.microsoft.com/library/e...net/scriptcenter/scrguide/sagsas_overview.asp

 

[Bob Barrows]

I put the xml file into the same folder as this test page which worked fine
when I ran it:

<%
dim sFile, xmlAdminCfgDoc,fError
sFile=server.MapPath("OneMailEntAdminCfg.xml")
set xmlAdminCfgDoc = Server.CreateObject("Msxml2.DOMDocument")
xmlAdminCfgDoc.async = False
fError = xmlAdminCfgDoc.Load(sFile)
if fError then
Response.Write xmlAdminCfgDoc.xml
else
Response.Write fError
end if
Response.End
%>

ok .. mailed it to '(e-mail address removed)'..

Strip out any confidential data and send me the file offline so I
can take a
whack at it.

Bob Barrows

Well that is the first method I used before attempting to the
absolute path method showing in my original post. It is just that
(it seems) that no
method is working IN ASP. even an xml data island, or XMLHTTP is
not
working ... simply does not load the file
................................
UGH!

You know, I just looked at some of my old code and realized that
I've used file-system paths in my calls to the Load method. Have
you
tried using Server.MapPath to make sure you've got the path
correct?
Here's an example from one of my apps:

s = server.MapPath("CurrencyRates") & "\curr" & FormatDate(Date(),
1) & ".xml"
DOM1.load s

HTH,
Bob Barrows

Brian Burgess wrote:
It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML
file. Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

Example
The following Microsoft Visual Basic® example creates a
DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB


You should use a URL, not a file system path, in the Load method.
From
MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML
file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

Brian Burgess wrote:
There is no error when loading in IE... I tried that before
starting
to code
the ASP actually.. :-(


Brian Burgess wrote:
Hi All,

Anyone having trouble 'Load'ing xml files with
'Msxml2.DOMDocument'
in ASP? The Server is IIS 5.1 and client is PocketPC2002
(Pocket
IE).

The 'Load' method is always returning 'False' for me in the
following
snip:


IXMLDOMParseError (MSXML 3.0 SDK)

http://msdn.microsoft.com/library/e...-us/xmlsdk30/htm/xmobjpmexmldomparseerror.asp

http://www.microsoft.com/technet/scriptcenter/scrguide/sagsas_overview.asp

 

[Brian Burgess]

That works! thanks Bob!

I put a line 'sFile=server.MapPath("OneMailEntAdminCfg.xml")' per your
example and loaded with 'sFile' ...

You wont believe how long I've been trying to figure that one out...

Is that a common thing for strings in ASP? .. just curious ..

anyways thanks again!

-BB

I put the xml file into the same folder as this test page which worked fine
when I ran it:

<%
dim sFile, xmlAdminCfgDoc,fError
sFile=server.MapPath("OneMailEntAdminCfg.xml")
set xmlAdminCfgDoc = Server.CreateObject("Msxml2.DOMDocument")
xmlAdminCfgDoc.async = False
fError = xmlAdminCfgDoc.Load(sFile)
if fError then
Response.Write xmlAdminCfgDoc.xml
else
Response.Write fError
end if
Response.End
%>

ok .. mailed it to '(e-mail address removed)'..

Strip out any confidential data and send me the file offline so I
can take a
whack at it.

Bob Barrows

Brian Burgess wrote:
Well that is the first method I used before attempting to the
absolute path method showing in my original post. It is just that
(it seems) that no
method is working IN ASP. even an xml data island, or XMLHTTP is
not
working ... simply does not load the file
................................
UGH!

You know, I just looked at some of my old code and realized that
I've used file-system paths in my calls to the Load method. Have
you
tried using Server.MapPath to make sure you've got the path
correct?
Here's an example from one of my apps:

s = server.MapPath("CurrencyRates") & "\curr" & FormatDate(Date(),
1) & ".xml"
DOM1.load s

HTH,
Bob Barrows

Brian Burgess wrote:
It can be a file system path as well. The following is the full
example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML
file. Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

Example
The following Microsoft Visual Basic® example creates a
DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB


You should use a URL, not a file system path, in the Load method.
From
MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML
file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

Brian Burgess wrote:
There is no error when loading in IE... I tried that before
starting
to code
the ASP actually.. :-(


Brian Burgess wrote:
Hi All,

Anyone having trouble 'Load'ing xml files with
'Msxml2.DOMDocument'
in ASP? The Server is IIS 5.1 and client is PocketPC2002
(Pocket
IE).

The 'Load' method is always returning 'False' for me in the
following
snip:


IXMLDOMParseError (MSXML 3.0 SDK)

http://msdn.microsoft.com/library/e...net/scriptcenter/scrguide/sagsas_overview.asp

 

[Bob Barrows]

I just did that to prevent line break problems in the email message. My
original line of code that also worked look like this (it's going to break
in this email message):

fError = xmlAdminCfgDoc.Load(server.MapPath("OneMailEntAdminCfg.xml"))

However, it isn't a bad idea to use a variable. It allows you to do this for
debugging purposes:
Response.Write sFile

HTH,
Bob Barrows

That works! thanks Bob!

I put a line 'sFile=server.MapPath("OneMailEntAdminCfg.xml")' per your
example and loaded with 'sFile' ...

You wont believe how long I've been trying to figure that one out...

Is that a common thing for strings in ASP? .. just curious ..

anyways thanks again!

-BB

I put the xml file into the same folder as this test page which
worked fine
when I ran it:

<%
dim sFile, xmlAdminCfgDoc,fError
sFile=server.MapPath("OneMailEntAdminCfg.xml")
set xmlAdminCfgDoc = Server.CreateObject("Msxml2.DOMDocument")
xmlAdminCfgDoc.async = False
fError = xmlAdminCfgDoc.Load(sFile)
if fError then
Response.Write xmlAdminCfgDoc.xml
else
Response.Write fError
end if
Response.End
%>

ok .. mailed it to '(e-mail address removed)'..


Strip out any confidential data and send me the file offline so I
can take
a
whack at it.

Bob Barrows

Brian Burgess wrote:
Well that is the first method I used before attempting to the
absolute path method showing in my original post. It is just
that (it seems) that no
method is working IN ASP. even an xml data island, or XMLHTTP
is
not
working ... simply does not load the file
................................
UGH!

You know, I just looked at some of my old code and realized that
I've used file-system paths in my calls to the Load method. Have
you
tried using Server.MapPath to make sure you've got the path
correct?
Here's an example from one of my apps:

s = server.MapPath("CurrencyRates") & "\curr" &
FormatDate(Date(), 1) & ".xml"
DOM1.load s

HTH,
Bob Barrows

Brian Burgess wrote:
It can be a file system path as well. The following is the
full example
from MSDN (for VB code), note the example does not show an URL:
[Visual Basic]
Visual Basic Syntax
boolValue = oXMLDOMDocument.load(xmlSource)Parameters
xmlSource
String containing a URL that specifies the location of the XML
file. Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

Example
The following Microsoft Visual Basic® example creates a
DOMDocument
object
and uses the load method to load a local XML file.

Dim xmlDoc As New Msxml2.DOMDocument
xmlDoc.async = False
xmlDoc.Load ("books.xml")
MsgBox xmlDoc.xml
The code I had shown originally works in VB code (as opposed to
VBScript in ASP), so I am wondering if there are any known and
undocumented issues ...

thanks anyways!

-BB


You should use a URL, not a file system path, in the Load
method.
From
MSDN:

Syntax
boolValue = oXMLDOMDocument.load(xmlSource)
Parameters
xmlSource
String containing a URL that specifies the location of the XML
file.
Return Value
Boolean. Returns True if the load succeeded; False if the load
failed.

HTH,
Bob Barrows

Brian Burgess wrote:
There is no error when loading in IE... I tried that before
starting
to code
the ASP actually.. :-(


Brian Burgess wrote:
Hi All,

Anyone having trouble 'Load'ing xml files with
'Msxml2.DOMDocument'
in ASP? The Server is IIS 5.1 and client is PocketPC2002
(Pocket
IE).

The 'Load' method is always returning 'False' for me in the
following
snip:


IXMLDOMParseError (MSXML 3.0 SDK)

http://msdn.microsoft.com/library/e...-us/xmlsdk30/htm/xmobjpmexmldomparseerror.asp

http://www.microsoft.com/technet/scriptcenter/scrguide/sagsas_overview.asp