uninstall VSTO plugin

Question

When I doubleclick to install a VSTO plugin for Excel 2010 I get a message "unable to install this application because an application with the same identity is already installed. To install this application, either modify the manifest version for this application or uninstall the preexisting application.". This plugin was previously uninstalled using "uninstall program" window in control panel. So how do I reinstall the plugin?

I've also deleted the previous plugin from directory that is specified at HKCU\Software\Microsoft\Fusion\DownloadCacheLocation registry key.

All exceptions: System.Deployment.Application.DeploymentException: Unable to install this application because an application with the same identity is already installed. To install this application, either modify the manifest version for this application or uninstall the preexisting application.

at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.DownloadAddIn(TimeSpan timeout)

at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.InstallAddIn()

score 22 · Accepted Answer · answered Nov 23 '11 at 11:16

22

If you need to do this on a computer without the SDK installed you can run the following command:

rundll32 dfshim CleanOnlineAppCache

Source: http://www.nerdfurio.us/blog/post.aspx?id=004f104e-da73-df11-949e-001143eed2d5

answered Nov 23 '11 at 11:16

Matthew Steeples

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Haven't tried it because I've already solved my problem, but I hope this works and will mark this as a solution. – Bogdan Verbenets Nov 23 '11 at 14:57
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Sure, it works. First need to uninstall from Add/Remove Programs, then use this magic command. – Badiboy Apr 18 '12 at 14:14
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I'd vote you up several times if that was possible - thank you – anhoppe Feb 26 '14 at 13:20

score 2 · Answer 2 · edited Sep 14 '18 at 20:16

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Another thing you can try: Find the app folder in

C:\Users\%USERNAME%\AppData\Local\Apps\2.0

and delete it.

Source: https://stackoverflow.com/a/11921554/15154

edited Sep 14 '18 at 20:16

SeanKilleen

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answered Jun 22 '16 at 03:23

John Fouhy

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score 1 · Answer 3 · answered Oct 27 '11 at 15:03

1

I've used the mage tool to clear application cache and that helped me.

answered Oct 27 '11 at 15:03

Bogdan Verbenets

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score 0 · Answer 4 · answered Mar 18 '18 at 17:49

0

I've met simple app to remove them:

http://jake.ginnivan.net/vsto/addin-uninstaller/

answered Mar 18 '18 at 17:49

T.Todua

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uninstall VSTO plugin

4 Answers4