Click here to Skip to main content
11,578,739 members (61,980 online)
Click here to Skip to main content

MSIUninstaller.exe (Console Application)

, 7 Aug 2008 CPOL 13.2K 151 9
Rate this:
Please Sign up or sign in to vote.
This tool allows you to easily remove all previously installed MSI packages.


I have a problem where I periodically have to rollback many machines on the network to an older version of our software (distributed as MSI package).
Thus I made a simple console application that can run from a BAT script or similar. It allows me to uninstall MSI packages on a computer, even when I don't know exactly which version is currently installed on the machine. And further, if the correct (old version) is already installed, I can skip the uninstallation of the package.

Using the Code

The MSIUninstaller.exe calls the Microsoft MsiExec.exe to handle the actual uninstallation of the MSI package.
It looks up all the installed packages in the registry database under
Then it loops through them to find the packages, which match the specific input parameters and then they are uninstalled.
The program allows you to specify input parameters like quiet, log and wild cards.

This function shows the primary functionality of the program:

    Sub Process(ByVal DisplayName As String, ByVal bUninstall As Boolean, _
	ByVal bDisplay As Boolean, ByVal bQuiet As Boolean, ByVal bLog As Boolean, _
	ByVal strSkip As String)

        ' Retrieve all the subkeys for the specified key.
        Dim names As String() = m_rKey.GetSubKeyNames
        Dim version As String = ""
        Dim publisher As String = ""
        Dim dispName As String = ""
        Dim iFound As Integer

        For Each s As String In names
            dispName = GetKeyValue(s, "DisplayName")
            If dispName <> "" Then
                If WildCardCompare(dispName, DisplayName) Then
                    version = GetKeyValue(s, "DisplayVersion")
                    publisher = GetKeyValue(s, "Publisher")
                    If strSkip <> "none" And WildCardCompare(version, strSkip) Then
                        Continue For
                    End If
                    Dim cmd As String = Environment.SystemDirectory.ToString + _
					"\MsiExec.exe /x " + s
                    If bQuiet Then
                        cmd += " /qn"
                    End If
                    If bLog Then
                        cmd += " /lie+c:\MSIUninstaller.log.txt"
                    End If
                    If Not bDisplay Then
                        Console.WriteLine("Publisher       = " + publisher)
                        Console.WriteLine("DisplayName     = " + dispName)
                        Console.WriteLine("version         = " + version)
                        Console.WriteLine("GUID            = " + s)
                        Console.WriteLine("EsitmatedSize   = " + (CDbl(GetKeyValue_
			(s, "EstimatedSize")) / 1024).ToString("N2") + " Mb")
                        Dim dato As String = GetKeyValue(s, "InstallDate")
                        dato = dato.Substring(6) + "-" + dato.Substring(4, 2) + _
						"-" + dato.Substring(0, 4)
                        Console.WriteLine("InstallDate     = " + CDate(dato).ToString_
                        Console.WriteLine("InstallSource   = " + GetKeyValue_
						(s, "InstallSource") + vbLf)
                    End If
                    If bUninstall Then
                    End If
                    iFound += 1
                End If
            End If
        Next s
        If Not bQuiet And iFound = 0 Then
            Console.WriteLine(DisplayName + " was not found in HKEY_LOCAL_MACHINE\_
		Software\Microsoft\Windows\CurrentVersion\Uninstall _
		on this computer" + vbLf)
        End If
    End Sub

    Private Function GetKeyValue(ByVal keyName As String, ByVal valueName As String) _
	As String
        Dim obj As Object = m_rKey.OpenSubKey(keyName).GetValue(valueName)
        If Not obj Is Nothing Then
            Return obj
            Return ""
        End If
    End Function

    Private Function WildCardCompare(ByVal strInput As String, _
	ByVal strWildCard As String) As Boolean
        strWildCard = "^" + Regex.Escape_
	(strWildCard).Replace("\*", ".*").Replace("\?", ".") + "$"
        Return Regex.IsMatch(strInput, strWildCard, RegexOptions.IgnoreCase)
    End Function	


  • 7th August, 2008: Initial post


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Denmark Denmark
No Biography provided

You may also be interested in...

Comments and Discussions

-- There are no messages in this forum --
| Advertise | Privacy | Terms of Use | Mobile
Web04 | 2.8.150603.1 | Last Updated 7 Aug 2008
Article Copyright 2008 by thomasholme
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid