How to logon Windows in .NET

[LongRunner]

Hi, I am writing an application that contains a logon function. I want to
use the Windows Logon account to logon my application. Does .NET provide
classes for me to do it? In fact, i am using the WINAPI LogonUser to do this
but i found that the function cannot work in Window2000, It return Error
code:1314 "A required privilege is not held by the client."
And i don't know how to fix it.

Can tell me how to do it in .NET? And can teach me how to solve my error.
Thx a lot of.

[Vladimír Lehocký]

The process calling LogonUser requires the SE_TCB_NAME privilege.
Read remark section for LogonUser function in MSDN

Vlado

"LongRunner" <ja**@flexsystem.com> wrote in message
news:et**************@TK2MSFTNGP11.phx.gbl...

Hi, I am writing an application that contains a logon function. I want to
use the Windows Logon account to logon my application. Does .NET provide
classes for me to do it? In fact, i am using the WINAPI LogonUser to do this but i found that the function cannot work in Window2000, It return Error
code:1314 "A required privilege is not held by the client."
And i don't know how to fix it.

Can tell me how to do it in .NET? And can teach me how to solve my error.
Thx a lot of.

[Vladimír Lehocký]

The account under which impersonating process is running must have "Act As
Part Of The Operating System" (SE_TCB_NAME) privilege. That privilege you
must set manualy in Local Security Policy mmc snap-in. You can find it under
LocalPolicies/User Righs Assignments

"LongRunner" <ja**@flexsystem.com> wrote in message
news:ez**************@TK2MSFTNGP11.phx.gbl...

Thx for your reply. In fact, i know the process require the SE_TCB_NAME.
However, i don't know how to set it. Also, I perfer use the >NET classes to perform this action more than the WINAPI. Does .NET provided class to do it?

<Vladimír Lehock? <le*****@gmx.net>> ¦b¶l¥ó
news:uY****************@tk2msftngp13.phx.gbl ¤¤¼¶¼g...

The process calling LogonUser requires the SE_TCB_NAME privilege.
Read remark section for LogonUser function in MSDN

Vlado

"LongRunner" <ja**@flexsystem.com> wrote in message
news:et**************@TK2MSFTNGP11.phx.gbl...

Hi, I am writing an application that contains a logon function. I want to use the Windows Logon account to logon my application. Does .NET provide classes for me to do it? In fact, i am using the WINAPI LogonUser to do

this

but i found that the function cannot work in Window2000, It return

Error code:1314 "A required privilege is not held by the client."
And i don't know how to fix it.

Can tell me how to do it in .NET? And can teach me how to solve my

error. Thx a lot of.

[Chris Hornberger]

Check out the System.Security.Principal namespace... the
System.Security.Principal.WindowsIdentity class in particular should
get you where you need to be.

"LongRunner" <ja**@flexsystem.com> wrote in message news:<ez**************@TK2MSFTNGP11.phx.gbl>...

Thx for your reply. In fact, i know the process require the SE_TCB_NAME.
However, i don't know how to set it. Also, I perfer use the >NET classes to
perform this action more than the WINAPI. Does .NET provided class to do it?