The following code class is designed to provide the ability to execute installing a Visual Studio Tools for Office (VSTO) into the ClickOnce cache.
This code would be desired for use by an MSI based installer or a utility tool.
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using System;
using System.Configuration.Install;
using System.Diagnostics;
using System.IO;
using System.Security;
using System.Security.Permissions;
using System.Text;
namespace ClickOnceCustomActions
{
public static class ClickOnceActions
{
public static bool CheckForPermission()
{
bool bRtn = false;
try
{
SecurityPermission permission =
new SecurityPermission(PermissionState.Unrestricted);
permission.Demand();
bRtn = true;
}
catch (SecurityException)
{
throw new InstallException(
"You have insufficient privileges to " +
"install the add-in into the ClickOnce cache. " +
"Please contact your system administrator.");
}
return bRtn;
}
public static void InstallVSTO(string fileAbsolutePath)
{
string arguments = String.Format(
"/S /I \"{0}\"", fileAbsolutePath);
int exitCode = ExecuteVSTOInstaller(arguments);
if (exitCode != 0)
{
string message = null;
switch (exitCode)
{
case -300:
message = String.Format(
"The Visual Studio Tools for Office solution " +
"was signed by an untrusted publisher and as " +
"such cannot be installed automatically. " +
"Please use your browser to navigate to {0} in " +
"order to install the solution manually. " +
"You will be prompted if the solution is trusted for execution.",
fileAbsolutePath);
break;
default:
message = String.Format(
"The installation of the ClickOnce solution failed with exit code {0}",
exitCode);
break;
}
throw new InstallException(message);
}
}
public static void UninstallVSTO(string fileAbsolutePath)
{
string arguments = String.Format(
"/S /U \"{0}\"", fileAbsolutePath);
ExecuteVSTOInstaller(arguments);
}
public static int ExecuteVSTOInstaller(string arguments)
{
string basePath = Environment.GetFolderPath(Environment.SpecialFolder.CommonProgramFiles);
string subPath = @"Microsoft Shared\VSTO\9.0\VSTOInstaller.exe";
string vstoInstallerPath = Path.Combine(basePath, subPath);
if (File.Exists(vstoInstallerPath) == false)
{
throw new InstallException(
"The Visual Studio Tools for Office installer was not found.");
}
ProcessStartInfo startInfo = new ProcessStartInfo(vstoInstallerPath);
startInfo.Arguments = arguments;
Process process = Process.Start(startInfo);
process.WaitForExit();
int exitCode = process.ExitCode;
return exitCode;
}
}
}
