Today I found my self needing to make changes to a web.config file, for a SharePoint application I made. After making those changes, I realized that not everyone may know where to find the file. So, below you will find two ways to access it.
The first way to get to the web.config file is to navigate to the file manually. The location will be C:inetpubwwwrootwssVirtualDirectories(your website directory)
The second way of getting to the web.config file is through IIS. Start -> All Programs -> Administrative Tools -> IIS . From here you will navigate to your site and right click. Then if you click on "Explore" it will bring you to the same folder location as option 1.
Note: Most web.config changes can be made from the GUI in IIS.
If you are looking for custom SharePoint development or SharePoint Support, please contact me at jason.billman(at)incworx.com