/PrerequisiteInstaller/InstallPrerequisite.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Diagnostics;

using System.IO;

using System.Deployment;

using Microsoft.Win32;

using System.Security.Permissions;

using System.Globalization;



[assembly: CLSCompliant(true)]

[assembly: SecurityPermission(

   SecurityAction.RequestMinimum, Execution = true)]

namespace PrerequisiteInstaller

{

    public partial class InstallPrerequisite : Form

    {

        public InstallPrerequisite()

        {

            InitializeComponent();

            Application.EnableVisualStyles();

        }



        static string programFilesLocation = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles);



        private void InstallPrerequisite_Load(object sender, EventArgs e)

        {

            this.pnlInstallingPrerequisite.Visible = true;

            this.pnlInstallationComplete.Visible = false;

            

            lblPrerequisiteMsg.Text = "Checking for prerequisites...";

            UpdateProgramFilesPathFor64BitMachine();

        }



        



        private void InstallPrerequisite_Activated(object sender, EventArgs e)

        {

            this.Refresh();

        }



        private static void UpdateProgramFilesPathFor64BitMachine()

        {

            try

            {

                if (!programFilesLocation.Contains("x86"))

                {

                    if (Directory.Exists(programFilesLocation.TrimEnd() + " (x86)"))

                    {

                        programFilesLocation = programFilesLocation.Replace("Program Files", "Program Files (x86)");

                    }

                }

            }

            catch (Exception)

            {

                //Failed to update program files path

            }

        }



        private void InstallPrerequisite_Shown(object sender, EventArgs e)

        {

            try

            {

                this.BringToFront();

                this.TopLevel = true;

                this.Refresh();



                if (!IsWindowsInstallerInstalled())

                {

                    lblPrerequisiteMsg.Text = "Prerequisite for Ontology Recognition add-in is being installed...";

                    InstallWindowsInstaller();

                }

                else

                {

                    //eventLogger.WriteToLog(LogCategory.Installer, Resource.PRIMINTEROPALREADYINSTALLED);

                    //Log: Primary Interop Assemblies are already installed

                }

                this.pnlInstallingPrerequisite.Visible = false;

                this.pnlInstallationComplete.Visible = true;

                lblBannerHeading.Text = "Installation Complete";

                Font font = new Font("Tahoma", 13);

                lblBannerHeading.Font = font;

                btnFinish.Enabled = true;

                btnFinish.Text = "&Finish";

                btnFinish.Focus();

            }

            catch (Exception)

            {

                //Failed to show Finish Dailog 

            }

        }



        private void InstallWindowsInstaller()

        {

            try

            {

                string osName = GetOSName();

                string installationPath = Path.Combine(programFilesLocation, "Word Add in For Ontology Recognition");

                //MessageBox.Show(osName);

                //MessageBox.Show(installationPath);

                switch (osName)

                {

                    case "Windows Vista":

                        if (Environment.OSVersion.Platform.ToString().Contains("32"))

                        {

                            //Install

                            //x86 Platform: Windows6.0-KB942288-v2-x86.msu (1.7 MB)

                            Process installProcess = new Process();

                            installProcess.StartInfo.FileName = installationPath + @"\Prerequisites\Windows6.0-KB942288-v2-x86.msu";

                            installProcess.Start();

                            while (!installProcess.HasExited)

                            {

                                System.Threading.Thread.Sleep(1000);

                            }

                        }

                        else if (Environment.OSVersion.Platform.ToString().Contains("64"))

                        {

                            //Install

                            //x64 Platform: Windows6.0-KB942288-v2-x64.msu (2.9 MB)

                            Process installProcess = new Process();

                            installProcess.StartInfo.FileName = installationPath + @"\Prerequisites\Windows6.0-KB942288-v2-x64.msu";

                            installProcess.Start();

                            while (!installProcess.HasExited)

                            {

                                System.Threading.Thread.Sleep(1000);

                            }

                        }

                        break;

                    case "Windows XP":

                        {

                            //Install    

                            //x86 Platform: WindowsXP-KB942288-v3-x86.exe (3.2 MB)

                            Process installProcess = new Process();

                            installProcess.StartInfo.FileName = installationPath + @"\Prerequisites\WindowsXP-KB942288-v3-x86.exe";

                            installProcess.Start();

                            while (!installProcess.HasExited)

                            {

                                System.Threading.Thread.Sleep(1000);

                            }

                        }

                        break;

                    default:

                        break;

                }

            }

            catch (Exception)

            {

            }

        }



        private bool IsWindowsInstallerInstalled()

        {

            string filepath = Environment.GetFolderPath(Environment.SpecialFolder.System);

            filepath = Path.Combine(filepath, "msiexec.exe");



            if (File.Exists(filepath))

            {

                FileVersionInfo fileVersionInfo = FileVersionInfo.GetVersionInfo(filepath);

                if (!string.IsNullOrEmpty(fileVersionInfo.FileVersion) &&

                    (fileVersionInfo.ProductVersion.StartsWith("4.5") ||

                    fileVersionInfo.ProductVersion.StartsWith("4.0") ||

                    fileVersionInfo.ProductVersion.StartsWith("3.5") ||

                    fileVersionInfo.ProductVersion.StartsWith("3.1")))

                {

                    return true;

                }

            }

            return false;

        }





        private static string GetOSName()

        {

            OperatingSystem osInfo = Environment.OSVersion;

            string osName = "UNKNOWN";



            try

            {

                switch (osInfo.Platform)

                {

                    case PlatformID.Win32Windows:

                        {

                            switch (osInfo.Version.Minor)

                            {

                                case 0:

                                    {

                                        osName = "Windows 95";

                                        break;

                                    }



                                case 10:

                                    {

                                        if (osInfo.Version.Revision.ToString(CultureInfo.CurrentCulture) == "2222A")

                                        {

                                            osName = "Windows 98 Second Edition";

                                        }

                                        else

                                        {

                                            osName = "Windows 98";

                                        }

                                        break;

                                    }



                                case 90:

                                    {

                                        osName = "Windows Me";

                                        break;

                                    }

                            }

                            break;

                        }



                    case PlatformID.Win32NT:

                        {

                            switch (osInfo.Version.Major)

                            {

                                case 3:

                                    {

                                        osName = "Windows NT 3.51";

                                        break;

                                    }



                                case 4:

                                    {

                                        osName = "Windows NT 4.0";

                                        break;

                                    }



                                case 5:

                                    {

                                        if (osInfo.Version.Minor == 0)

                                        {

                                            osName = "Windows 2000";

                                        }

                                        else if (osInfo.Version.Minor == 1)

                                        {

                                            osName = "Windows XP";

                                        }

                                        else if (osInfo.Version.Minor == 2)

                                        {

                                            osName = "Windows Server 2003";

                                        }

                                        break;

                                    }



                                case 6:

                                case 7:

                                    {

                                        osName = "Windows Vista";

                                        break;

                                    }

                            }

                            break;

                        }

                }

            }

            catch (NullReferenceException ex)

            {

                //Failed to get type of operating system.

            }

            catch (Exception ex)

            {

                //Failed to get type of operating system.

            }

            return osName;

        }



        private void btnFinish_Click(object sender, EventArgs e)

        {

            this.Close();

        }



    }

}