Deployment file extensions

I made some changes to an existing C#.net 2008 console/desktop application. Now I want to deploy the application. My problem is the production code does not have a setup and deploy project file attached to it. The person who wrote this application is no longer with the company and this application has no documentation with it. Thus I can going to run a search on certain drives to see if I can find the 'setup and deploy' files. Thus can you tell me what kind of files would be looking for? Right now i looked for *.msi files. These files did not contain what I was looking for. Can you tell me what other file extensions like '.msi' I would be looking for?