Find Install directory and working directory of VSTO Outlook Addin; or any Office Addin

Question

I created a VSTO Outlook Addin that uses a library Html2Xhtml.dll (.NET) which calls another Html2xhtml.exe by executing System.Diagnostic.Process.Start().

However,

Answer 1

Had the same issue for ClickOnce applications. Here is what you need to do to get the deployment path of the addin:

Add System.Deployment.Application reference in your application

next is to use this property to retrieve the deployment path:

ApplicationDeployment.CurrentDeployment.UpdateLocation.ToString()

and there you go!