NirSoft web site provides a unique collection of small and useful freeware utilities
In order to search for a freeware utility in NirSoft Web site, click here.
If you are looking for password-recovery tools, click here.
If you have a software-listing Web site, and you want to add the freeware utilities provided by NirSoft, click here
MessenPass
Recovers the passwords of most popular Instant Messenger programs: MSN Messenger, Windows Messenger, Yahoo Messenger, ICQ Lite 4.x/2003, AOL Instant Messenger provided with Netscape 7, Trillian, Miranda, and GAIM.
Mail PassView
Recovers the passwords of the following email programs: Outlook Express, Microsoft Outlook 2000 (POP3 and SMTP Accounts only), Microsoft Outlook 2002/2003 (POP3, IMAP, HTTP and SMTP Accounts), IncrediMail, Eudora, Netscape Mail, Mozilla Thunderbird, Group Mail Free.
Mail PassView can also recover the passwords of Web-based email accounts (HotMail, Yahoo!, Gmail), if you use the associated programs of these accounts.
Protected Storage PassView
Recovers all passwords stored inside the Protected Storage, including the AutoComplete passwords of Internet Explorer, passwords of Password-protected sites, MSN Explorer Passwords, and more...
Dialupass
Password recovery tool that reveals all passwords stored in dial-up entries. (Internet and VPN connections) As opposed to many other tools, this tool works in all versions of Windows, including Windows 2000 and Windows XP.
Asterisk Logger
Recovers passwords stored behind asterisks (****) characters. You can use this tool to recover the passwords of many applications, like CuteFTP, CoffeeCup Free FTP, VNC, and more...
AsterWin IE
Reveals the passwords stored behind the asterisks in the web pages of Internet Explorer 5.0 and above. You can use it for recovering a lost web site password, if it's stored on your computer. Visual Basic source code is included.
Network Password Recovery
Recover network passwords stored by Windows XP operating system.
SniffPass Password Sniffer
You can use this utility to recover lost Web/FTP/Email passwords.

PstPassword
Recovers lost password of Outlook PST file.