There are ways to do that, yes. How - depends on your site and settings and hosting environment. I use little php includes on static html pages to keep thing fresh or to show information like navigation on unix type hosts.
To get the right kind of help for your specific situation, people would need to know those details. I couldn't help with IIS server hosting, but someone else could.
Reading between the lines, you don't currently use php. This is OK, because php has a wonderfully shallow learning curve. That is, you can learn two words of php, use it to do one thing, and defer the whole rest of the language until you need it.