Here some general utility tools that I use in my daily life. These are not specific to any programming, but generally I find these are very convinient.
Launchy is the most efficient way to open files, folders, websites, and programs on your computer. Nobody likes to hunt through the start menu to find an application, just to find that the application is hidden under some obscure folder named after a company you have never heard of! Instead, Launchy is a smart search program which tries to guess which program or file you are looking for and will launch it when you hit the enter key.
More Info: http://www.launchy.net/
IrfanView is a very fast, small, compact and innovative graphic viewer for Windows with excellent features. It is easy to use for beginners and powerful for professionals.
More Info: http://www.irfanview.com/
File Renamer is a bulk renaming tool to rename your thousands of files in few clicks with 40+ possible renaming rules. Powerful yet simple and easy to use interface with built in preview to see new names before rename.
More Info: http://www.filerenamer.net/
The best way to search file systems for content without enduring significant ageing. Faster search results on windows file system.
More Info: http://www.powergrep.com/
Simple and easy to use ColorPic tool is for picking color from the desktop or any application.
More Info: http://www.iconico.com/colorpic/
Beyond Compare is a great tool for comparing files and folders on your file system. You can visualize changes in your files and carefully reconcile them. You can merge or synchronize files and generate reports.
More Info: http://www.scootersoftware.com/
Great notepad replacement application. Notepad++ is a free source code editor and supports several languages.
More Info: http://notepad-plus-plus.org/
Another excellent notepad replacement. TextPad is a powerful, general purpose Easy to use editor for plain text files and supports several languages.
More Info: http://www.textpad.com/
Greenshot is a light-weight screenshot software tool for Windows. It is easy to understand and configurable. Create complete or partial screenshots quickly. Easily annotate, highlight or obfuscate parts of the screenshot. Send the screenshot to a file, the clipboard, a printer or as e-mail attachment.
More Info: http://getgreenshot.org/
FileZilla Client is a fast and reliable cross-platform FTP, FTPS and SFTP client with lots of useful features and an intuitive graphical user interface.
More Info: http://filezilla-project.org/index.php