I find myself using FindStr on the Windows Command Line fairly frequently. Like grep in a *nix environment, FindStr is a powerful regular expression text search tool. Unfortunately, I can never remember the command line parameters for it. I also wanted a way to quickly and easily open found files. To solve both these issues, I made FindStr Frontend, a simple UI frontend for the command line utility. It's open source and
available on GitHub. You can download a precompiled binary
here.
And a screenshot for good measure...