Where are IIS log files stored?

To determine where your IIS log files are stored, please execute the steps below on your server:
1. Go to Start -> Control Panel -> Administrative Tools
2. Run Internet Information Services (IIS)
3. Find your web site under the tree on the left and right-click on it.
4. Choose properties
5. On the Web Site tab, you should see an option near the bottom that says "Active Log Format." Next to it is a Properties button. Click on the Properties button.
6. At the bottom of the General Properties tab, you'll see a box that contains the log file directory and the log file name. The full log path is comprised of the log file directory plus the first part of the log file name.