Instructions
First, configure Windows to show file name extensions. Now, when you view files, the extension will always be shown.
Below is a list of known potentially dangerous file types/extensions. These types of files are not always dangerous and are in many cases valid files. However, it is also common for malicious and damaging software to be contained in these types of files and they should be opened with caution. If you do not know where a file came from or if it did not come from a trusted source, do not open it.
Extension | Description |
---|---|
ADE | Microsoft Access Project Extension |
ADP | Microsoft Access Project |
BAS | Visual Basic Class Module |
BAT | Batch File |
CHM | Compiled HTML Help File |
CMD | Windows NT Command Script |
COM | MS-DOS Application |
CPL | Control Panel Extension |
CRT | Security Certificate |
EXE | Application |
HLP | Windows Help File |
HTA | HTML Applications |
INF | Setup Information File |
INS | Internet Communication Settings |
ISP | Internet Communication Settings |
JS | JScript File |
JSE | JScript Encoded Script File |
LNK | Shortcut |
MDB | Microsoft Access Application |
MDE | Microsoft Access MDE Database |
MSC | Microsoft Common Console Document |
MSI | Windows Installer Package |
MSP | Windows Installer Patch |
MST | Visual Test Source File |
PCD | Photo CD Image |
PIF | Shortcut to MS-DOS Program |
REG | Registration Entries |
SCR | Screen Saver |
SCT | Windows Script Component |
SHS | Shell Scrap Object |
URL | Internet Shortcut (Uniform Resource Locator) |
VB | VBScript File |
VBE | VBScript Encoded Script File |
VBS | VBScript Script File |
WSC | Windows Script Component |
WSF | Windows Script File |
WSH | Windows Scripting Host Settings File |