Vista - get-wmiobject -credential threw an exception

Hey yo,

More silly newb questions I think...

I was getting a bit fed up of doing run-as all the time on some of my
scripts, so I started messing around with the get-credential stuff. It
doesn't seem to work the way I think it should. Here are the two basic
commands I'm using in my little script...

$cred = Get-Credential MyDomain\MyAdminAccount

Get-wmiobject -class exchange_SMTPQueue -Namespace
ROOT\MicrosoftExchangev2 -ComputerName MyServer -credential $cred

I get prompted for the appropriate password. When I okay the PW prompt,
I immediately get the following error:

Get-WmiObject : The type initializer for 'System.Management.MTAHelper'
threw an exception.

My totally uneducated guess is that Get-WmiObject is smacking itself
against my local privaleges (not an admin) before it runs out to the
requested server with my credentials. Am I right? What can I do about
it? The whole point of my use of the Get-Credential is to side-step my
local account restrictions on my workstation. Why would Get-Cred be
bumping into them if I'm explicitly using the -credential parameter with
an account that has the appropriate rights?

BTW... the command works perfectly if I do a run-as to start PoSH and
the run-as account has admin rights on both the workstation and the server.

--Jonathan "smthng" Kalmes
http://smthng.info

The help file for get-credential has this variant

C:\PS>C:\PS>Get-WmiObject Win32_BIOS -ComputerName Server01 '
-Credential (get-credential Domain01\User01)

where the credential is created as the wmiobject is created. I suspect then
it won't try your local credentials

Have you tried anything like this?

--
Richard Siddaway

Please note that all scripts are supplied "as is" and with no warranty


"Jonathan Kalmes" wrote:

> Hey yo,
>
> More silly newb questions I think...
>
> I was getting a bit fed up of doing run-as all the time on some of my
> scripts, so I started messing around with the get-credential stuff. It
> doesn't seem to work the way I think it should. Here are the two basic
> commands I'm using in my little script...
>
> $cred = Get-Credential MyDomain\MyAdminAccount
>
> Get-wmiobject -class exchange_SMTPQueue -Namespace
> ROOT\MicrosoftExchangev2 -ComputerName MyServer -credential $cred
>
> I get prompted for the appropriate password. When I okay the PW prompt,
> I immediately get the following error:
>
> Get-WmiObject : The type initializer for 'System.Management.MTAHelper'
> threw an exception.
>
> My totally uneducated guess is that Get-WmiObject is smacking itself
> against my local privaleges (not an admin) before it runs out to the
> requested server with my credentials. Am I right? What can I do about
> it? The whole point of my use of the Get-Credential is to side-step my
> local account restrictions on my workstation. Why would Get-Cred be
> bumping into them if I'm explicitly using the -credential parameter with
> an account that has the appropriate rights?
>
> BTW... the command works perfectly if I do a run-as to start PoSH and
> the run-as account has admin rights on both the workstation and the server.
>
> --Jonathan "smthng" Kalmes
> http://smthng.info
>

RichS wrote:
> The help file for get-credential has this variant
>
> C:\PS>C:\PS>Get-WmiObject Win32_BIOS -ComputerName Server01 '
> -Credential (get-credential Domain01\User01)
>
> where the credential is created as the wmiobject is created. I suspect then
> it won't try your local credentials
>
> Have you tried anything like this?
>

Just tried it. Two problems appeared...

1 - It throws the same exception.
2 - I now get prompted within every iteration of the loop, instead of
just once at the start.

Still open for suggestions.

--Jonathan "smthng" Kalmes
http://smthng.info

did you try WbemTest ?

as I did see in this thread its not only happening with PoSH

http://www.thescripts.com/forum/thread407575.html

Greetings /\/\o\/\/

"Jonathan Kalmes" <smthng@smthng.info> wrote in message
news:OKl6bzgRHHA.3412@TK2MSFTNGP05.phx.gbl...
> RichS wrote:
>> The help file for get-credential has this variant
>>
>> C:\PS>C:\PS>Get-WmiObject Win32_BIOS -ComputerName Server01 '
>> -Credential (get-credential Domain01\User01)
>>
>> where the credential is created as the wmiobject is created. I suspect
>> then it won't try your local credentials
>>
>> Have you tried anything like this?
>>
>
> Just tried it. Two problems appeared...
>
> 1 - It throws the same exception.
> 2 - I now get prompted within every iteration of the loop, instead of just
> once at the start.
>
> Still open for suggestions.
>
> --Jonathan "smthng" Kalmes
> http://smthng.info