.net 2008 Express User Impersonation API?
May 31, 2010
If someone has any knowledge on how the following works, please advise as to why I can sucessfully Load a user token, Set token privileges to load the profile, impersonate the logged on user, create the environment block, obtain the roaming profile path, and load the profile perfectly fine as long as the application calling the functions is running as an admin. The application runs as a service on the local machine. As soon as I try to run the exact same code under the SYSTEM account, LoadUserProfile returns error 5. What must I have to change in order to allow the SYSTEM account on the local machine to perform the same tasks?
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Jun 26, 2011
Is there any way I could add a user control to my VB 2008 Express project?
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Mar 26, 2009
I'm using SQL 2008 Express with a multi user VB.NET Windows application. Do I have to add each user to the SQL user account? Does NT AuthoritySYSTEM work? I do not know how this works. So far I have NT AuthoritySYSTEM in the Security-Logins of the Server. But do I have to add it also in the database? In the databse Security-User, I have the following:
[Code]...
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Jan 22, 2010
I am starting design of a program that needs to run no matter if the user is logged in to the PC or not. So I will be writing it as a VB.Net Service.
As I am not overly familiar with SQL Server Express, is it possible to connect to a local SQL Server Express Instance and access the database from a VB.Net Service while the user is not logged in to the PC?
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Nov 14, 2010
This was my code .
Private
Declare
Function addelements
Lib
[Code].....
meeting the requirement i.e procedure to set environment variable and use/get that in my code. make necessary changes in my code accordingly.
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Apr 19, 2011
I'm trying to update a data user using vb.net2008 and sql server management studio express for my backend. the error says "must declare the scalar variable "@username"
Here's the code .
Private Sub btnupdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)Handles btnupdate.Click
Dim connstring = New SqlClient.SqlConnection("Data Source=MISD-
[CODE]...
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Mar 17, 2009
I'm working on a multi user VB.Net windows application with back end as SQL Server 2008 Express. The SQL Server is installed on the intranet network drive. This is the connection string I will be using. Is this correct?
Data Source=.SQLEXPRESS;AttachDbFilename=Q:DatabasePrintDB.mdf;Integrate d Security=True;Connect Timeout=30;User Instance=True
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May 10, 2011
I need to write a program in VB 2008 express that takes an user entry from a textbox and strips out all the spaces, changes it to either all upper case or all lower case then checks to see if it is a palindrome. I must also include a loop structure and a decision structure. I have seen bits and pieces of code but I do not really know how to put them together. Basically I need it from the button click to the end. ?
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Sep 21, 2009
how I can implement my calendar with VB .net express 2008 and MSSQL 2008 Express. How do I get it to work with datasets, binding source etc.If I go to Properties>settings my connection string is:
Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|CalendarDatabase.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True
and I have a table with fields:-
CalendarID
Subject
Location
Purpose
[code]....
I can Add the event to the calendar I have the necessary items on my form linked to my table and I can save them to my table:
Me.Validate()
Me.CalendarTableBindingSource.EndEdit()
Me.TableAdapterManager.UpdateAll(Me.CalendarDatabaseDataSet)
But I cant keep the event displayed on my calendar when I close it and open it again.
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Oct 3, 2011
I'm just using the default SQL Server Express in my vb 2008 express edition as my database server for my database operation. When I tried to update the records on my table I got a runtime error which indicates the error on this line 'myCommand.ExecuteNonQuery()'and it highlights a yellow background on it. The runtime error says "SqlException was unhandled: An expression of non-boolean type specified in a context where a condition is expected, near 'Number'. ".
Imports System.Data.SqlClient
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim myConnection As New SqlConnection
Dim myCommand As New SqlCommand
[code]....
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Oct 16, 2010
I tried to start using VB 2010 Express with a program I originally developed with VB 2005 Express that I moved to VB 2008 Express successfully a couple years ago. It uses a database file (*.mdf) that is on the computer ( not out on a server). When attempt to run the program in debug mode, I get the following error "An attempt to attach an auto-named database for file C:Documents and SettingsTomMy DocumentsQuizzing StuffQuestion Database 2010QuizQuest ionGameQuizQuestionGameinReleaseQuizQuestionDB.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share."
I first made a copy of the entire project folder that was working in VB 2008 Express and gave it a different name. In VB2010 I opened the project in the copied folder and it said it successfully converted the project. I am able to open the Data Source inthe Designer and see the database structure as I expect. I think the project is still using SQL Server 2005 Express (because it is what is checked in the list of prerequisites on the Publish tab).
Note, I have programmed off and on for many years, but fairly new to using databases and SQL Server.
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Feb 29, 2012
Here is the scoop: I am trying to make a user account SQL database work with Visual Basic 2008 Express for login purposes, i.e. usernames & passwords. Plan is to host this server so people can login to use the the application and verify they have a valid account. I would like to host all the account information in SQL due to the possiblity of hundreds of users at any given time. I also need the ability to add data to the database for users registering for the first time. The SQL server will need to be able to access the SQL Server databases remote via WAN.
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Jan 21, 2011
I am trying to re write a VB6 program using MS Access, many years ago, using VB 2010 express and SQL server 2008 R2 Express. I have a database with several tables, which I created using the designer. I am able to connect to the database and select data and display it in textboxes etc in vb code. What I have not been able to in code is to INSERT rows DELETE rows or UPDATE any data in the tables. I can do any of these operations using the Query Designer, but I want to do it in code. I can post some code if necessiary, but I thought it might just be some property that I had not set in the designer.
[Code]...
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May 25, 2012
I have to sync information between a users table in SQL and a user group in active directory. For example, if a user is entered into SQL table A then they need to be entered into group A and if a user is removed from SQL table A, then remove them from group A.The application is written in ASP.NET (VB)
I see two solutions:
1) A scheduled task that runs every night syncing the two (written in VB.NET).
2) Use inpersonation so that Active Directory can be updated by the ASP.NET application. The Web.Config file will have to be encrypted in this solution.
I have read articles online that say it is bad practice to update AD in ASP.NET. This would suggest that option 1 is the better solution. Which is the better solution?
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Jan 27, 2009
What is the best way to GAC dll on remote computer with Impersonation to an admin account?
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Dec 1, 2011
delete file by impersonation in .net
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May 26, 2012
The following webpage talks about using impersonation in code (ASP.NET)[url]... I am thinking about creating a class for the code, then the application can call impersonateValidUser and undoimpersonation.
I am concerned about putting usernames and passwords in my code as surely anyone will be able to see them using a tool like ILDASM. What is the best way to hide these passwords?
The article has a section titled: Impersonate the IIS Authenticated Account or User. I thought about creating an impersonated user in the Web.Config, but this would mean that the entire application is run as the inpersonated user. I only want a very small part of the application to run as the impersonated user - when it is necesary to access and update active directory.
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Feb 25, 2011
I'm using Visual Basic 2008 and I've written a very handy little app that takes care of serveraladmistrative tasks when our company gets a new project. I won't get into all the features but one of the tasks that it performs is setting up a new projectolder structureon our file server with a predefined set of subfolders and it also sets userpermisions on the subfolders.nder Windows XP it worked great and saved me tons of time. It made me giggle everytime I used it in the past becuase it would save me so much time doing these simple but time consuming tasks.
Now my computer is a Windows 7 Pro machine and the only way I can get the exe to run is to right-click the .exe and choose RUNAS administrator. I'm already a domain administrator so why I would need to do this is silly and annoying. In my code I already included a RunAs_Impersonator class so that anyone could use the app which worked great until windows 7.The RunAs_Impersonator class that I use can be found hereI recently needed to make some additions to the program'sbut when I try to debug itwhen it gets to the portion of trying to create the folders on the server,the program breaks and makes claims that I don't have the rights to do so.
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Feb 29, 2012
there Dream in Code Community! Im an okay programmer as far as skill right now I am still learning as we all are I need some help from some experienced VB.NET programmers in the community, Here is the scoop: I am trying to make a user account SQL database work with Visual Basic 2008 Express for login purposes, i.e. usernames & passwords.
[Code]...
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Feb 24, 2010
The program I am trying to modify was initially written using VB 2005 Express. I have subsequently downloaded the 2008 version. The program creates a monthly spreadsheet from a template. The old code that will no longer (highlighted and underlined) compile is as follows:
[Code]...
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Aug 30, 2011
I am trying to use impersonation when running an exe on a server. It appears to log in correctly but windows still doesn't recognize the Username.
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Jul 15, 2010
I have a strange issue when using WindowsImpersonationContext.
Whenever I use Impersonation in a Windows Forms and the Main Form loses focus, all of the controls freeze up and their events are either not triggered or take too long to trigger. This only happens when I use LogonUserA with a user that is not the current[code]....
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Sep 15, 2010
I have a VB.Net windows application which needs to modify a MS Access database availabe in server. The login user does not have permission to the folder where the database is available. So I am using windows impersonation with another user's credentials to access to that folder.This works fine and I am able to create a new text file in that folder. But when I try to access the database try to get a dataset from the database, it gives "unspecified error". When I check in the internet some people say that there could be problem with temporary files that OleDB tries to create.
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May 26, 2009
I have a program in vb express 2008 which I would like to publish in a little more professional manner than provided in the standard vb express package. I would at least like to include a "Terms of Use" document the user must agree to before installing the program. I have dovnloaded and installed web developer, c# and vs 2008. Do any of these include a professional installer? If not are there any free installer packages available? I am 72 and live on a limited budget so I cannot aford an expensive package for one program.
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Mar 5, 2010
I'm using VB 2008 Express for our College Project. I'm also running SQL Server 2008 Express and have installed SQL Server Management Studio and used it to create my database. Both software have been installed and running locally. I'm trying to connect to the database from VB 2008 Express. Database connection wizard have 3 options:
connecting to Access db
connecting to SQL Server 3.5 compact db and
connecting to SQL Server db file.
[code].....
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Jan 7, 2010
I have SQL 2008 Express and Visual Basic 2008 Express runing on XP Professional SP2. When I select add new data source from VB I don't have the option to connect to SQL Server 2008 express to get at the to SQL Server Database. I also notice that the OLE DB connector is not availble as a data connector. Can somebody please confirm that VB 2008 Express can connect directly to SQL Server 2008 Express and how I can achieve it.
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Jan 7, 2009
'm trying to use Visual Basic 2008 Express and connect to a DB of SQL Server 2008 Express but ... you can tell me why in the Database Explorer and the Data menu of VB only have the following options for data source? Microsoft Access Database File Microsoft SQL Server Compact 3.5 Microsoft SQL Server Database File does not have the options Microsoft ODBC Data Source Microsoft SQL Server obs.: I have the Visual Web Express 2008 installed, and there are the options available.
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Sep 27, 2011
So I am using a user to run the following code that is a member of the "User" group on a Windows 7, x64 machine. I am trying to use impersonation (by logging in as a user that is part of the Administrator group) to allow the current user to read from the registry. For some reason the login happens successfully but even though WindowsIdentity.GetCurrent() is returning the user that is part of the Administrator group I am still getting an error message saying "Requested registry access is not allowed". What am I doing wrong? This is the main code:
[Code]...
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Mar 19, 2009
I need to impersonate with an account that is local on the remote server not the server where the application is running.
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Sep 13, 2011
I am developing a small tool to allow our Windows admins to do stuff like create/delete users, mailboxes and other useful stuff.The current version has to be launched with RunAs as it requires domain admin privileges to do a lot of the stuff. Now, to overcome this I'm trying to incorporate a dialog box that prompts for credentials when the application starts and then uses said credentials throughout the application. I have it working for the AD interaction but one of the tasks the tool needs to do is create folders on a remote server and share them.Is there any way to create folders using alternate credentials? Maybe, once I have the credentials, quit the application and re-launch it with the specified credentials?
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