Hi,
I have a service that need to access the current user registry from time to
time.
But a service only works as a SYSTEM and not as the current user.
How can i change that? Or at the very least get the service to launch an
application as the current user and not the SYSTEM
Many thanks
Sims
15  2022 
You can always start a service as a particular user. Just goto services,
select your service and take the properties, there you can see a LogOn tab,
and choose Log on as "This account" option, and give the user name, passwd.
"Sims" <si*********@ho tmail.com> wrote in message
news:u0******** ******@tk2msftn gp13.phx.gbl... Hi,
I have a service that need to access the current user registry from time
to time.
But a service only works as a SYSTEM and not as the current user.
How can i change that? Or at the very least get the service to launch an
application as the current user and not the SYSTEM
Many thanks
Sims
You can always start a service as a particular user. Just goto services,
select your service and take the properties, there you can see a LogOn
tab, and choose Log on as "This account" option, and give the user name,
passwd.
Thanks,
But how can i do that programmaticall y?
When i install the service i don't see an option to install it as 'This
account' rather.
I can do it manually but i want the install procedure to do it itself.
Sims
On Sat, 7 Feb 2004 09:49:32 UTC, "Sims" <si*********@ho tmail.com> wrote: You can always start a service as a particular user. Just goto services,
select your service and take the properties, there you can see a LogOn
tab, and choose Log on as "This account" option, and give the user name,
passwd.
Thanks,
But how can i do that programmaticall y?
When i install the service i don't see an option to install it as 'This
account' rather.
I can do it manually but i want the install procedure to do it itself.
Sims
Sims,
Recheck the CreateService call. There are two fields that are pointers
to the Account UserID and Password to run under. If these fields are
passed in as NULL, the SYSTEM Account is used. That is how you can
set up for a specific user. You can also change this later if need be.
An alternate method is to change the SID to get access of a specific
user. I've not figured all that out yet so I can't point you to a
source. That would be used when your service needs to work under
several different accounts at the same time.
Good luck,
David
> Recheck the CreateService call. There are two fields that are pointers
to the Account UserID and Password to run under. If these fields are
passed in as NULL, the SYSTEM Account is used. That is how you can
set up for a specific user. You can also change this later if need be.
An alternate method is to change the SID to get access of a specific
user. I've not figured all that out yet so I can't point you to a
source. That would be used when your service needs to work under
several different accounts at the same time.
Hi,
Thanks David and Tom for the replies.
The problem is that the user runs the install program. During the install i
instruct the service to be installed but i do not know the user password and
user name.
If i could retrieve it during install then it would be great, but i cannot.
Even if i had a 'runonce' option to install the service per user i still
would not be able to get the user name and password.
My install program cannot retrieve the user name and password.
Sims. I have a service that need to access the current user registry from time
to time.
But a service only works as a SYSTEM and not as the current user.
How can i change that? Or at the very least get the service to launch an
application as the current user and not the SYSTEM
Many thanks
Sims
Hi again,
Further to my posts...
Is there anyway that the [system] service could launch an application as the
current user?
Sims
Sims,
Just do what many other installs do: prompt the user appropriately for the
username and password for the user under which it is to run the service. If
you are running XP or later you can use the CredUIPromptFor Credentials API
to validate the information give (invisibly of course - check the dwFlags).
Either that or you can go ahead and create the service and try starting it
check the return code...
SQL Server install does this as do many others. There is no way I know of to
bypass such a mechanism - even windows itself can do this during its own
install.
When the username / password is stored by CreateService, it is stored using
a "LSA Secret". This is information stored in a particular place in the
registry using reversable encryption and keys the system know but in this
case you don't - it is "safe".
- Tim
"Sims" <si*********@ho tmail.com> wrote in message
news:#h******** ******@tk2msftn gp13.phx.gbl... I have a service that need to access the current user registry from time to time.
But a service only works as a SYSTEM and not as the current user.
How can i change that? Or at the very least get the service to launch an
application as the current user and not the SYSTEM
Many thanks
Sims
Hi again,
Further to my posts...
Is there anyway that the [system] service could launch an application as
the current user?
Sims
"Sims" <si*********@ho tmail.com> wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. Further to my posts...
Is there anyway that the [system] service could launch an application as
the
current user?
Sims
There is no need to do so, just create a new logon session by calling
Win32's API "LogonUser" and use the token obtained to impersonate.
Search the KB, it contains articles an samples on how to call LogonUser from
..NET.
Willy.
Sims,
It is not a good practice to access HKEY_CURRENT_US ER from a service - what
happens if that user no longer has a local profile on the machine.
Additionally, the term "current user" does not always make sense for a
service - what happens if no user is logged on...
If you need to access the registry from the service, consider using
HKEY_LOCAL_MACH INE instead.
regards
roy fine
"Sims" <si*********@ho tmail.com> wrote in message
news:u0******** ******@tk2msftn gp13.phx.gbl... Hi,
I have a service that need to access the current user registry from time
to time.
But a service only works as a SYSTEM and not as the current user.
How can i change that? Or at the very least get the service to launch an
application as the current user and not the SYSTEM
Many thanks
Sims
It is not a good practice to access HKEY_CURRENT_US ER from a service -
what happens if that user no longer has a local profile on the machine.
Additionally, the term "current user" does not always make sense for a
service - what happens if no user is logged on...
If you need to access the registry from the service, consider using
HKEY_LOCAL_MACH INE instead.
Didn't think of that, i will look at it.
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I have a service that need to access the current user registry from time to
time.
But a service only works as a SYSTEM and not as the current user.
How can i change that? Or at the very least get the service to launch an
application as the current user and not the SYSTEM
Many thanks
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