.js .jse .vb .vbe .vbs (is used in Domains and logons scripts) .ws .wsh .wsf .scr .pif .hta .ISO ------------------------------------------------------ List of Microsoft Outlook blocked file types: https://support.office.com/en-us/article/Blocked-attachments-in-Outlook-3811cddc-17c3-4279-a30c-060ba0207372 .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 .cnt Microsoft Help Workshop Application .com Command .cpl Windows Control Panel Extension (Microsoft) .crt Certificate File .csh csh Script .der DEEncoded X509 Certificate File .diagcab Microsoft Support diagnostic tools .exe Executable File .fxp FoxPro Compiled Source (Microsoft) .gadget Windows Vista gadget .grp Microsoft program group .hlp Windows Help File .hpj AppWizard Help project .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 .jar Java Archive .jnlp Java Network Launch Protocol .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) .mcf Media Container Format .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 .msu Windows Update file .ops Office Profile Settings File .osd Open Software Description .pcd Visual Test (Microsoft) .pif Windows Program Information File (Microsoft) .pl Perl script .plg Developer Studio Build Log .prf Windows System File .prg Program Files .printerexport Printer backup file .ps1 Windows PowerShell .ps1xml Windows PowerShell .ps2 Windows PowerShell .ps2xml Windows PowerShell .psc1 Windows PowerShell .psc2 Windows PowerShell .psd1 Windows PowerShell .psdm1 Windows PowerShell .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 .theme Desktop theme file settings .tmp Temporary File Folder .url Internet Location .vb VBScript File or Any Visual Basic Source .vbe VBScript Encoder Script File .vbp Visual Basic project file .vbs VBScript Script Files Visual Basic for Applications Script .vsmacros Visual Studio .NET Binary-based Macro Project (Microsoft) .vsw Visio Workspace File (Microsoft) .webpnp Internet printing file .website Pinned site shortcut from Internet Explorer .ws Windows Script File .wsc Windows Script Component .wsf Windows Script File .wsh Windows Script Host Settings File .xbap Browser applications .xll Excel add in .xnk Exchange Public Folder Shortcut -------------------------------------------------------------- Another extensive list of file attachments and details https://docs.google.com/spreadsheets/d/1alEKmI7oUlyed7rLH4ymSnX2CD9GxYshGq5qKMXFCGI/edit#gid=0