I have a similar problem, VB.Net - Program can't Edit HKEY_Local_Machine registry entry, that was listed, but the fix did not work for me. I am using Visual Studio 2017. I am trying to create a portable app that will work in Windows 7 Professional and Windows 10 Professional. The idea is to reset the last logged on person to either Blank or a different user. My colleagues and I have to logged into member computers with an elevated account to work on them, but the member does not pay attention and causes our account to get locked out. we are not allowed to use group policy to correct this problem, so I am trying to do it with my app. I can make changes via regedit, vbs and batch files, but I cannot seem to get my program in VB2017 to work. I took off the preferred 32bit checkbox and tried running it as an administrator or a different user with administrative rights. I get the same error . . . cannot write to the registry (HKEY_Local_Machine registry). Below is my code. Any help would be appreciated.
Private Sub btnReset_Click(sender As Object, e As EventArgs) Handles btnReset.Click
Dim regVersion64 As Microsoft.Win32.RegistryKey = Microsoft.Win32.RegistryKey.OpenBaseKey _
(Microsoft.Win32.RegistryHive.LocalMachine, Microsoft.Win32.RegistryView.Registry64).
OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI")
If chkbClearEverything.Checked = True Then
regVersion64.SetValue("LastLoggedOnDisplayName", "")
regVersion64.SetValue("LastLoggedOnSAMUser", "")
regVersion64.SetValue("LastLoggedOnUser", "")
Else
tbd1 = TBLogon.Text
tbs1 = TBsam.Text
tbu1 = TBllu.Text
regVersion64.SetValue("LastLoggedOnDisplayName", tbd1)
regVersion64.SetValue("LastLoggedOnSAMUser", tbs1)
regVersion64.SetValue("LastLoggedOnUser", tbu1)
End If
Dim rvLastLoggedOnDisplayName As String = regVersion64.GetValue("LastLoggedOnDisplayName")
Dim rvLastLoggedOnSANuser As String = regVersion64.GetValue("LastLoggedOnSAMUser")
Dim rvLastLoggedOnUser As String = regVersion64.GetValue("LastLoggedOnUser")
If Not rvLastLoggedOnDisplayName = "" Then
TBLogon.Text = rvLastLoggedOnDisplayName
tbd1 = rvLastLoggedOnDisplayName
End If
If Not rvLastLoggedOnSANuser = "" Then
TBsam.Text = rvLastLoggedOnSANuser
tbs1 = rvLastLoggedOnSANuser
End If
If Not rvLastLoggedOnUser = "" Then
TBllu.Text = rvLastLoggedOnUser
tbu1 = rvLastLoggedOnUser
End If
regVersion64.Close()
End Sub
Related
I am running into problems with the passing of parameters to an externally created Crystal Reports XI report from the WinForms application I'm building in Visual Studio 2015 Community Edition. No matter what I try to do, the report doesn't seem to get the value unless I manually select it at the prompt (which shouldn't even be popping up) when the report is being displayed. I'm using the same code I've used in a previous application (although that one was built in VS2008), but I've tried a number of "alternate" versions of the code in my attempts to get this working. Here's the code that I'm currently using:
Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
Module modReports
Private WithEvents DocumentToPrint As New Printing.PrintDocument
Private Sub ShowReport(ByVal LID As Integer, ByVal InHouse As Boolean)
Dim Report As New ReportDocument
Dim ReportParameters As ParameterFieldDefinitions = Nothing
Dim Parameter As ParameterFieldDefinition = Nothing
Dim ApplicationValue As ParameterDiscreteValue = Nothing
Dim ReportValues As ParameterValues = Nothing
Dim ReportViewer As New frmReport
Dim Response As DialogResult = DialogResult.Cancel
PrintingReport = True
Report.Load(CRYSTAL_REPORT_FILE_PATH & "ExampleReport.rpt")
Report.Refresh()
Report.VerifyDatabase()
ReportParameters = Report.DataDefinition.ParameterFields
Parameter = ReportParameters.Item("PrintAll")
ReportValues = New ParameterValues
ApplicationValue = New ParameterDiscreteValue
'Parameter.CurrentValues.Clear()
'ReportValues.Clear()
ReportValues = Parameter.CurrentValues
If LID = 7777 Then
ApplicationValue.Value = True
Else
ApplicationValue.Value = False
End If
ReportValues.Add(ApplicationValue)
Parameter.ApplyCurrentValues(ReportValues)
Response = MessageBox.Show("Do you want to send this report directly to the printer?", "SEND TO PRINTER", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question)
If Response = DialogResult.No Then
With ReportViewer
.rptViewer.ReportSource = Nothing
.rptViewer.ReportSource = Report
.WindowState = FormWindowState.Maximized
.rptViewer.RefreshReport()
' Set zoom level: 1 = Page Width, 2 = Whole Page, 25-100 = zoom %
.rptViewer.Zoom(1)
.rptViewer.Show()
.ShowDialog()
End With
ElseIf Response = DialogResult.Yes Then
Dim SelectPrinter As New PrintDialog
Dim PrinterSelected As DialogResult = DialogResult.Cancel
With SelectPrinter
.Document = DocumentToPrint
.AllowPrintToFile = False
.AllowSelection = False
.AllowCurrentPage = False
.AllowSomePages = False
.PrintToFile = False
End With
PrinterSelected = SelectPrinter.ShowDialog
If PrinterSelected = DialogResult.OK Then
Dim Copies As Integer = DocumentToPrint.PrinterSettings.Copies
Dim PrinterName As String = DocumentToPrint.PrinterSettings.PrinterName
Dim LastPageNumber As Integer = 1
Dim PrintBuffer As String = String.Empty
LastPageNumber = Report.FormatEngine.GetLastPageNumber(New ReportPageRequestContext)
Report.PrintOptions.PrinterName = PrinterName
Report.PrintOptions.PrinterDuplex = DocumentToPrint.PrinterSettings.Duplex
Report.PrintToPrinter(Copies, True, 1, LastPageNumber)
If Copies = 1 Then
PrintBuffer = "Printed " & Copies & " copy of "
Else
PrintBuffer = "Printed " & Copies & " copies of "
End If
If LastPageNumber = 1 Then
PrintBuffer += LastPageNumber.ToString & " page."
Else
PrintBuffer += LastPageNumber.ToString & " pages."
End If
MessageBox.Show("The report was sent to the following printer:" & vbCrLf & " • " & PrinterName & vbCrLf & PrintBuffer, "REPORT PRINTED", MessageBoxButtons.OK, MessageBoxIcon.Information)
End If
End If
PrintingReport = False
End Sub
End Module
The report itself is built to use an XML file as the data source, which is dynamically created by this application. All of that works normally, and oddly enough, if I send the report directly to the printer, it seems to print correctly without prompting me. It's only a problem when I try to display the report through the CrystalReportViewer object.
Some of the things I've tried without success:
I've tried with and without calling the Clear() methods on the
Parameter.CurrentValues and ReportValues objects.
I've tried moving all of the parameter setting logic to after I set the
ReportSource of the CrystalReportViewer control (rptViewer.ReportSource)
I've tried using alternate Crystal Reports objects (ParameterFields instead of ParameterFieldDefinitions and ParameterField instead of ParameterFieldDefinition).
I've tried removing all of the "complicated" code and just using the SetParameterValue method (i.e., Report.SetParameterValue("PrintAll", True)
I've even tried creating different types of parameter fields in the report itself (String, Boolean, Number) and passing appropriate values for those datatypes.
If I walk through the code, it doesn't appear to error out anywhere, and everything looks like it's working just great until I get to the .rptViewer.RefreshReport() line in the With ReportViewer block. I've verified that all of the parameters and values have only the value I am "selecting" via the application by checking them every step up to that point, and it all looks exactly as I expect it to look.
But the application (via Crystal Reports) continues to prompt me for the value I just passed in the code. If I select the value in that prompt, the report does generate correctly based on the value I select, but no matter what I "pass" in the programming, the prompt always defaults to True.
Does anyone have any suggestions that I may have overlooked for how to get this parameter to correctly pass to the CrystalReportViewer control? Please let me know if you need any additional information or have any questions about what I've set up so far here. Thank you in advance.
Okay, so based on the information I found over on http://www.it-sideways.com/2011/10/how-to-disable-parameter-prompt-for.html, it seems that the RefreshReport method for the CrystalReportViewer control basically wipes out any parameters and/or log on information:
1. ) Do not invoke CrystalReportViewer.RefreshReport Method
This method will refresh the data for the report currently displayed
in the CrystalReportViewer control. The report will prompt for
parameters or logon info is necessary.
So, this method is not needed unless the same
CrystalDecisions.CrystalReports.Engine.ReportDocument object is
reused.
By commenting out that line of the code, I was able to prevent the parameter prompt from being displayed. The only issue I have after making that change is that, even though the zoom level is being set to 1 (page width), and when I run the project the CrystalReportViewer control even shows that it's correctly set in the status bar ('Zoom Factor: Page Width' is displayed), the report itself is not actually zoomed in to the page width.
With the RefreshReport method uncommented, if I manually provided the value for my parameter, it would display the report properly zoomed. If I add the zoom button to the control (.rptViewer.ShowZoomButton = True), I can manually choose the Page Width option, which then correctly "re-zooms" the report to the desired level, but it won't immediately display that way if the RefreshReport method is not called.
Regardless, I can spend some time trying to fight that now, but I finally have it properly setting, passing and displaying the results of my parameter. I hope this helps someone else running into this issue.
So this is what I've got -
Public Shared Function GetDirectoryEntry() As DirectoryEntry
Try
Dim entryRoot As New DirectoryEntry("LDAP://RootDSE")
Dim Domain As String = DirectCast(entryRoot.Properties("defaultNamingContext")(0), String)
Dim de As New DirectoryEntry()
de.Path = "LDAP://" & Domain
de.AuthenticationType = AuthenticationTypes.Secure
Return de
Catch
Return Nothing
End Try
End Function
Protected Sub rbAddUser_Click(sender As Object, e As EventArgs) Handles rbAddUser.Click
AddMemberToGroup("LDAP://DOMAIN.local/CN=" & !DISTRIBUTIONNAME! & ",CN=Users,DC=DOMAIN,DC=local", "/CN=" & !SELECTEDUSER! & ",CN=Users,DC=DOMAIN,DC=local")
End Sub
Private Sub AddMemberToGroup(ByVal bindString As String, ByVal newMember As String)
Dim ent As DirectoryEntry = GetDirectoryEntry()
ent.Properties("member").Add(newMember)
ent.CommitChanges()
End Sub
I hope this is easy enough for people to read, anyway the group and user are selected by the users in a table and when they click the add button I want the selected users to be adding to the selected distribution list.
when it gets to the CommitChanges() I get this error
An exception of type 'System.DirectoryServices.DirectoryServicesCOMException' occurred in System.DirectoryServices.dll but was not handled in user code Additional information: An operations error occurred.Error -2147016672
This is a common issue with the Process Model application pool configuration, from the official documentation:
By using the <processModel> element, you can configure many of the security, performance, health, and reliability features of application pools on IIS 7 and later.
This issue exists as CommitChanges() requires elevated privileges, and can be fixed by setting your web-application to run under NetworkManager; this can be done in two ways:
Directly in your code, place the problem code inside this Using statement:
Using HostingEnvironment.Impersonate()
'Problem code goes here.
End Using
Via IIS Manager:
Navigate to your website's application pool;
Navigate to Advanced Settings;
Scroll down to the Process Model group;
Change Identity to NetworkService
I solved the error by passing through my user credentials
Private Sub AddMemberToGroup(ByVal bindString As String, ByVal newMember As String)
Dim ent As New GetDirectoryEntry(bindString)
ent.Properties("member").Add(newMember)
ent.Username = "DOMAIN\USERNAME"
ent.Password = "PASSWORD"
ent.CommitChanges()
End Sub
However my code still doesn't work, I just get no errors.
I wrote a vb.net program using Visual Studio 2010 Express to open and manipulate an Excel workbook. I have MS Office 2010 and my program works fine on my computer. When I try to run it on my wife's computer... nothing. I get no error messages... nothing. She has the same version of Office as I do, but she has Windows XP and I have Vista and her computer is has more security protocols than mine, but my other program, which does not import any Office namespaces, runs fine on her computer.
When I look at the task manager on her computer there is nothing under the Applications tab, but under the Processes tab I see an instance of Excel.exe, and if I try to run the program again, still nothing under applications, but yet another instance of Excel.exe under processes.
I have tried to install my program using the Click-Once technology and just the Release folder after a Rebuild... nothing.
I have also tried to compile it under versions 2.0, 3.0, etc.... nothing.
Here is some of the relevant code:
Public Class CleanUpDataForm
Dim m_objExcel As New Excel.Application
Dim m_rngRange, m_rngEnd As Excel.Range
Dim m_blnEntireRow, m_blnCancel As Boolean
Dim m_strRange, m_strSearch, m_strLogFrameCode As String
Const c_strCode As String = "log"
Friend Const c_intScrollBarWidth As Integer = 30
Private Sub CleanUpDataForm_FormClosed(sender As Object, e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
m_objExcel = Nothing
Dispose()
End Sub
Private Sub tsbOpen_Click(sender As System.Object, e As System.EventArgs) Handles tsbOpen.Click
ofdGetWorksheet.Title = "Select Worksheet"
ofdGetWorksheet.Filter = "All Excel Files (*.xl*)|*.xl*|(*.xlsx)|*.xlsx|(*.xlsm)|*.xlsm|(*.xlsb)|*.xlsb|(*.xlam)|*.xlam|(*.xltx)|*.xltx|(*.xltm)|*.xltm|(*.xls)|*.xls|(*.xla)|*.xla|(*.xlt)|*.xlt|(*.xlm)|*.xlm|(*.xlw)|*.xlw"
ofdGetWorksheet.FileName = ""
If ofdGetWorksheet.ShowDialog <> System.Windows.Forms.DialogResult.Cancel Then
Me.Text = ofdGetWorksheet.FileName
m_objExcel.Workbooks.Open(Me.Text)
tsbCopySheet.Enabled = True
tsbFindRows.Enabled = True
tsbClose.Enabled = True
m_objExcel.Visible = True
Else
Me.Text = ""
End If
Me.Activate()
End Sub
Any ideas??
I believe that I was having this issue as well, but this line of code (after your m_objExcel.visible statement) was what fixed it (going from memory).
m_objExcel.Windows(1).Visible = True
One thing you may want to look at is the Marshal.BindToMoniker method in the InteropServices library. I found this incredibly useful. If the file is not open, then it opens it. If it is open already, then it will use that instance. Like this...
wb = System.Runtime.InteropServices.Marshal.BindToMoniker(fileName) 'open the file. If the file is already open, then this uses the open file instead of trying to open again
exApp = wb.Parent
wb is my workbook variable, exApp is my Excel variable.
One other thing; to make sure Excel is closed and to remove those pesky processes from Task Manager
Private Sub KillExcel()
For Each RunningProcess In Process.GetProcessesByName("Excel")
RunningProcess.Kill()
Next
End Sub
I'm building out a decommissioning application that will allow an individual to provide an computer name and the utility will go out and purge the computer record from various locations. I'm running into a problem when attempting to delete a computer account from Active Directory. I'm impersonating a service account that only has rights to "Delete All Child Objects" within a particular OU structure. The code below works if I run it with my domain admin account; however fails with an "Access Denied" when I run it with the impersonated service account. I have verified that the permissions are correct within AD as I can launch Active Directory Users and Computers using a "runas" and providing the service account credentials and I can delete computer objects perfectly fine.
Wondering if anyone has run into this before or has a different way to code this while still utilizing my current OU permissions. My gut tells me the "DeleteTree" method is doing more then just deleting the object.
Any assistance would be appreciated.
Sub Main()
Dim strAsset As String = "computer9002"
Dim strADUsername As String = "serviceaccount#domain.com"
Dim strADPassword As String = "password"
Dim strADDomainController As String = "domaincontroller.domain.com"
Dim objDirectoryEntry As New System.DirectoryServices.DirectoryEntry
Dim objDirectorySearcher As New System.DirectoryServices.DirectorySearcher(objDirectoryEntry)
Dim Result As System.DirectoryServices.SearchResult
Dim strLDAPPath As String = ""
Try
objDirectoryEntry.Path = "LDAP://" & strADDomainController
objDirectoryEntry.Username = strADUsername
objDirectoryEntry.Password = strADPassword
objDirectorySearcher.SearchScope = DirectoryServices.SearchScope.Subtree
objDirectorySearcher.Filter = "(&(ObjectClass=Computer)(CN=" & strAsset & "))"
Dim intRecords As Integer = 0
For Each Result In objDirectorySearcher.FindAll
Console.WriteLine(Result.Path)
Diagnostics.Debug.WriteLine("DN: " & Result.Path)
Dim objComputer As System.DirectoryServices.DirectoryEntry = Result.GetDirectoryEntry()
objComputer.DeleteTree()
objComputer.CommitChanges()
intRecords += 1
Next
If intRecords = 0 Then
Console.WriteLine("No Hosts Found")
End If
Catch e As System.Exception
Console.WriteLine("RESULT: " & e.Message)
End Try
End Sub
If you're on .NET 3.5 and up, you should check out the System.DirectoryServices.AccountManagement (S.DS.AM) namespace. Read all about it here:
Managing Directory Security Principals in the .NET Framework 3.5
MSDN docs on System.DirectoryServices.AccountManagement
Basically, you can define a domain context and easily find users and/or groups in AD:
' set up domain context
Dim ctx As New PrincipalContext(ContextType.Domain, "DOMAIN", strADUsername, strADPassword)
' find a computer
Dim computerToDelete As ComputerPrincipal = ComputerPrincipal.FindByIdentity(ctx, strAsset)
If computerToDelete IsNot Nothing Then
' delete the computer, if found
computerToDelete.Delete()
End If
The new S.DS.AM makes it really easy to play around with users and groups in AD!
Delete Tree is different from delete. You're going to need the Delete Subtree permission on the child computer objects for this to work.
I'm writing an Excel file recovery program with VB.Net that tries to be a convenient place to gather and access Microsoft's recommended methods. If your interested in my probably kludgy, error filled, and lacking enough cleanup code it's here: http://pastebin.com/v4GgDteY. The basic functionality seems to work although I haven't tested graph macro table recovery yet.
It occurred to me that Vista and Windows 7 users could benefit from being offered a list of previous versions of the file within my application if the Shadow Copy Service is on and there are previous copies. How do I do this?
I looked at a lot of web pages but found no easy to crib code. One possibility I guess would be to use vssadmin via the shell but that is pretty cumbersome. I just want to display a dialogue box like the Previous Versions property sheet and allow users to pick one of the previous versions. I guess I could just display the previous version property sheet via the shell by programmatically invoking the context menu and the "Restore previous versions choice", however I also want to be able to offer the list for Vista Home Basic and Premium Users who don't have access to that tab even though apparently the previous versions still exist. Additionally if it possible I would like to offer XP users the same functionality although I'm pretty sure with XP only the System files are in the shadow copies.
I looked at MSDN on the Shadow Copy Service and went through all the pages, I also looked at AlphaVSS and AlphaFS and all the comments. I'm kind of guessing that I need to use AlphaVss and AlphFS and do the following?
Find out the list of snapshots/restore points that exist on the computer.
Mount those snapshots.
Navigate in the mounted volumes to the Excel file the user wants to recover and make a list of those paths.
With the list of paths handy, compare with some kind of diff program, the shadow copies of the files with the original.
Pull out the youngest or oldest version (I don't think it matters) of those shadow copies that differ from the recovery target.
List those versions of the files that are found to be different.
This seems cumbersome and slow, but maybe is the fastest way to do things. I just need some confirmation that is the way to go now.
I finally decided to go ahead and start coding. Please make suggestions for speeding up the code or what do with files that are found to be different from the recovery file target. Is there a simpler way to do this with AlphaVSS and AlphaFS?
Private Sub Button1_Click_2(sender As System.Object, e As System.EventArgs) Handles Button1.Click
'Find out the number of vss shadow snapshots (restore
'points). All shadows apparently have a linkable path
'\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy#,
'where # is a simple one, two or three digit integer.
Dim objProcess As New Process()
objProcess.StartInfo.UseShellExecute = False
objProcess.StartInfo.RedirectStandardOutput = True
objProcess.StartInfo.CreateNoWindow = True
objProcess.StartInfo.RedirectStandardError = True
objProcess.StartInfo.FileName() = "vssadmin"
objProcess.StartInfo.Arguments() = "List Shadows"
objProcess.Start()
Dim burp As String = objProcess.StandardOutput.ReadToEnd
Dim strError As String = objProcess.StandardError.ReadToEnd()
objProcess.WaitForExit()
Dim xnum As Integer = 0
Dim counterVariable As Integer = 1
' Call Regex.Matches method.
Dim matches As MatchCollection = Regex.Matches(burp, _
"HarddiskVolumeShadowCopy")
' Loop over matches.
For Each m As Match In matches
xnum = xnum + 1
'At the max xnum + 1 is the number of shadows that exist
Next
objProcess.Close()
Do
'Here we make symbolic links to all the shadows, one at a time
'and loop through until all shadows are exposed as folders in C:\.
Dim myProcess As New Process()
myProcess.StartInfo.FileName = "cmd.exe"
myProcess.StartInfo.UseShellExecute = False
myProcess.StartInfo.RedirectStandardInput = True
myProcess.StartInfo.RedirectStandardOutput = True
myProcess.StartInfo.CreateNoWindow = True
myProcess.Start()
Dim myStreamWriter As StreamWriter = myProcess.StandardInput
myStreamWriter.WriteLine("mklink /d C:\shadow" & counterVariable _
& " \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy" _
& counterVariable & "\")
myStreamWriter.Close()
myProcess.WaitForExit()
myProcess.Close()
' Here I compare our recovery target file against the shadow copies
Dim sFile As String = PathTb.Text
Dim sFileShadowPath As String = "C:\shadow" & _
counterVariable & DelFromLeft("C:", sFile)
Dim jingle As New Process()
jingle.StartInfo.FileName = "cmd.exe"
jingle.StartInfo.UseShellExecute = False
jingle.StartInfo.RedirectStandardInput = True
jingle.StartInfo.RedirectStandardOutput = True
jingle.StartInfo.CreateNoWindow = True
jingle.Start()
Dim jingleWriter As StreamWriter = jingle.StandardInput
jingleWriter.WriteLine("fc """ & sFile & """ """ _
& sFileShadowPath & """")
jingleWriter.Close()
jingle.WaitForExit()
Dim jingleReader As StreamReader = jingle.StandardOutput
Dim JingleCompOut As String = jingleReader.ReadToEnd
jingleReader.Close()
jingle.WaitForExit()
jingle.Close()
Dim jingleBoolean As Boolean = JingleCompOut.Contains( _
"no differences encountered").ToString
If jingleBoolean = "True" Then
MsgBox(jingleBoolean)
Else
'I haven't decided what to do with the paths of
'files that are different from the recovery target.
MsgBox("No")
End If
counterVariable = counterVariable + 1
Loop Until counterVariable = xnum + 1
End Sub