There are loads of file types swimming around our computers at any given time — most of which exist to supplement the programs we use or play (or allow them to function in the first place). The most ...

A blog for IT professionals who work with Windows on large networks. As it happens, each and every user profile created on a particular running instance of Windows 10 has its own NTUser.dat file. This ...

Have you ever encountered a strange file with an NTUSER.DAT name on your Windows PC? Don't worry, it's not a virus, but quite an important file. In this article, we'll explain what it is and why you ...

We’ve all seen mysterious .dat file attachments in our inboxes from time to time. In most cases the .dat attachment originates in Microsoft Outlook, which produces outgoing messages using a slightly ...

Many times when receiving mail attachments with the new Exchange-enabled Microsoft Entourage v.X from Windows users, you will get a winmail.dat file that is inaccessible under Mac OS X. Alan Sill ...

We keep getting e-mail attachments in winmail.dat files and can’t open them. What’s going on? Is there a utility that can extract the attachments from these? When Outlook or Outlook Express users send ...

I am having a problem trying to get IIS 6.0 to serve several .exe files and a .dat file. The files are hosted in a virtual directory, with "scripts and executables" allowed, directory browsing allowed ...