I needed this program so that I could search my solutions easily and instantly, and there are about a thousand of them now. Each solution usually contains 1 project, but sometimes it contains more, and if I want to search in projects rather than in solutions, that is not possible yet; the program has no support for it, even though its name suggests otherwise. The program looks something like this:

TextBox where you type the search term.
For now it cannot search case-insensitively, so there is a big difference between Java and java: one of them will be shown and the other will not. The 2nd button clears the search box and thereby restores the original items. The third button copies the paths of the currently found/displayed projects to the clipboard.
The fourth button then finds out how many image files each solution contains (it looks for the 4 most common extensions) and displays this in the ListBox. Once you load it, you cannot get rid of it in the ListBox, but the count is shown only for files where it is not zero. The last button I have not tried, but what it does is delete duplicate solutions – for now it looks for them only by name.
It is not an entirely new program; as with many of my programs, I reused most of the earlier WF code (the program is now in WPF) and only translated the outputs into English. Double-clicking any item in the ListBox opens that project in Windows Explorer.