how to get installation folder when uninstalling the application

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i am trying to get the installed folder when the user uninstalls the application through Add/Remove Programs.

VB

Application.StartupPath

and

VB

Application.ExecutablePath

instead of installed folder it is showing windows folder.

how do i get the exact location of the installed folder.?

Posted 25-Jun-12 23:41pm

oppai_kamu

Updated 28-Jun-12 1:09am

Jαved

v2

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Comments

Dave Kreskowiak 26-Jun-12 8:13am

First, where is this code going?? What application?? Is this a custom action inside your installer??

Kiran Susarla 27-Jun-12 3:49am

Are you using Visual Studio setup and Deployment project to create the installer?

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Jαved · Accepted Answer · 2012-06-28T01:12:00

Hi,
You need to find all installed app from "HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall"

Here is the sample code-

C#

private string FindByDisplayName(RegistryKey parentKey, string name)
        {
            string[] nameList = parentKey.GetSubKeyNames();
            for (int i = 0; i < nameList.Length; i++)
            {
                RegistryKey regKey =  parentKey.OpenSubKey(nameList[i]);
                try
                {
                    if (regKey.GetValue("DisplayName").ToString() == name)
                    {
                        return regKey.GetValue("InstallLocation").ToString();
                    }
                }
                catch { }
            }
            return "";
        }

C#

RegistryKey regKey = Registry.LocalMachine.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Uninstall");
string location = FindByDisplayName(regKey, "MSN");
MessageBox.Show(location);

This example will compare the DisplayName keyvalue to your input name, if it find the value, then return the InstallLocation key value.