The following table identifies the file types that we blocks by default.
| File name extension |
File type |
| .ade |
Access Project Extension (Microsoft) |
| .adp |
Access Project (Microsoft) |
| .app |
Executable Application |
| .asp |
Active Server Page |
| .bas |
BASIC Source Code |
| .bat |
Batch Processing |
| .cer |
Internet Security Certificate File |
| .chm |
Compiled HTML Help |
| .cmd |
DOS CP/M Command File, Command File for Windows NT |
| .com |
Command |
| .cpl |
Windows Control Panel Extension (Microsoft) |
| .crt |
Certificate File |
| .csh |
csh Script |
| .der |
DER Encoded X509 Certificate File |
| .exe |
Executable File |
| .fxp |
FoxPro Compiled Source (Microsoft) |
| .gadget |
Windows Vista gadget |
| .hlp |
Windows Help File |
| .hta |
Hypertext Application |
| .inf |
Information or Setup File |
| .ins |
IIS Internet Communications Settings (Microsoft) |
| .isp |
IIS Internet Service Provider Settings (Microsoft) |
| .its |
Internet Document Set, Internet Translation |
| .js |
JavaScript Source Code |
| .jse |
JScript Encoded Script File |
| .ksh |
UNIX Shell Script |
| .lnk |
Windows Shortcut File |
| .mad |
Access Module Shortcut (Microsoft) |
| .maf |
Access (Microsoft) |
| .mag |
Access Diagram Shortcut (Microsoft) |
| .mam |
Access Macro Shortcut (Microsoft) |
| .maq |
Access Query Shortcut (Microsoft) |
| .mar |
Access Report Shortcut (Microsoft) |
| .mas |
Access Stored Procedures (Microsoft) |
| .mat |
Access Table Shortcut (Microsoft) |
| .mau |
Media Attachment Unit |
| .mav |
Access View Shortcut (Microsoft) |
| .maw |
Access Data Access Page (Microsoft) |
| .mda |
Access Add-in (Microsoft), MDA Access 2 Workgroup (Microsoft) |
| .mdb |
Access Application (Microsoft), MDB Access Database (Microsoft) |
| .mde |
Access MDE Database File (Microsoft) |
| .mdt |
Access Add-in Data (Microsoft) |
| .mdw |
Access Workgroup Information (Microsoft) |
| .mdz |
Access Wizard Template (Microsoft) |
| .msc |
Microsoft Management Console Snap-in Control File (Microsoft) |
| .msh |
Microsoft Shell |
| .msh1 |
Microsoft Shell |
| .msh2 |
Microsoft Shell |
| .mshxml |
Microsoft Shell |
| .msh1xml |
Microsoft Shell |
| .msh2xml |
Microsoft Shell |
| .msi |
Windows Installer File (Microsoft) |
| .msp |
Windows Installer Update |
| .mst |
Windows SDK Setup Transform Script |
| .ops |
Office Profile Settings File |
| .pcd |
Visual Test (Microsoft) |
| .pif |
Windows Program Information File (Microsoft) |
| .plg |
Developer Studio Build Log |
| .prf |
Windows System File |
| .prg |
Program File |
| .pst |
MS Exchange Address Book File, Outlook Personal Folder File (Microsoft) |
| .reg |
Registration Information/Key for W95/98, Registry Data File |
| .scf |
Windows Explorer Command |
| .scr |
Windows Screen Saver |
| .sct |
Windows Script Component, Foxpro Screen (Microsoft) |
| .shb |
Windows Shortcut into a Document |
| .shs |
Shell Scrap Object File |
| .ps1 |
Windows PowerShell |
| .ps1xml |
Windows PowerShell |
| .ps2 |
Windows PowerShell |
| .ps2xml |
Windows PowerShell |
| .psc1 |
Windows PowerShell |
| .psc2 |
Windows PowerShell |
| .tmp |
Temporary File/Folder |
| .url |
Internet Location |
| .vb |
VBScript File or Any VisualBasic Source |
| .vbe |
VBScript Encoded Script File |
| .vbs |
VBScript Script File, Visual Basic for Applications Script |
| .vsmacros |
Visual Studio .NET Binary-based Macro Project (Microsoft) |
| .vsw |
Visio Workspace File (Microsoft) |
| .ws |
Windows Script File |
| .wsc |
Windows Script Component |
| .wsf |
Windows Script File |
| .wsh |
Windows Script Host Settings File |
| .xnk |
Exchange Public Folder Shortcut |