File Extension DEF

.DEF File

File extension: DEF
File type: Define Module


Notes about the DEF file extension:



Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.

The DEF file type is primarily associated with '3D Fassade Plus'.

Detailed information for file extension DEF:


Primary association: 3D Fassade Plus

Other applications associated with file type DEF:

  • Defaults
  • Definitions
  • Geoworks (Assembly Header File)
  • Modula-2 Definition Module File
  • Module Definition/Configuration File
  • OPTLINK (Digital Mars Module Definition File) by Digital MarsOPTLINK, the Digital Mars linker, links object files and libraries to produce an executable program or DLL for DOS, Windows 3.x, or Win32. The .DEF file describes the essential characteristics of an application or library for Win16 or Win32. It also assigns segment sequences, function orders for encapsulated functions, and so on, even in conventional DOS .EXE files.Related links: Module Definition Files Described
  • RCSWin (New (Default) Job File) by RCS CorporationRCSWin is a program for mechanical design, analysis, and cost estimating of shell-and-tube heat exchangers.
  • SGML Tag Definition The Mime types used with this association are: text/plain.
  • SmartWare II Data File
  • TLink - Wlink - Others (Linker Definition)
  • Unknown Apple II File ((found on Golden Orchard Apple II CD Rom))
  • Visual C++ (Definition)
  • ZDP ZEBU's Directory Printer (Definitions of User-defined Output Formats) by ZEBU InformaticsWith ZDP you can export directory entries to other programs or to the clipboard.Related links: ZDP Help, FAQ

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Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.

Technical data

To view technical data on file-extension DEF click this link to expand/hide the additional area.

System Info for File Extension .DEF

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: deffile, FileType: Export Definition File, AppName: Microsoft Visual Studio .NET 2002
EXEFile: devenv.exe

ProgramID: deffile
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET\Common7\IDE\devenv.exe /dde

ProgramID: RVS-DEF
EXEFile: %ProgramFiles%\RVS\WCOM\SYSTEM\RVSEDIT.EXE %1

ProgramID: VisualStudio.def.7.1
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET 2003\Common7\IDE\devenv.exe /dde

ProgramID: VisualStudio.def.7.1
EXEFile: %ProgramFiles%\Visual Studio .NET 2003\Common7\IDE\devenv.exe /dde

ProgramID: VisualStudio.def.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\devenv.exe /dde %1

ProgramID: VCExpress.def.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\VCExpress.exe /dde %1

ProgramID: VCExpress.def.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\VCExpress.exe /dde

ProgramID: WinEdt.def
EXEFile: %ProgramFiles%\WinEdt Team\WinEdt\WinEdt.exe %1

ProgramID: VisualStudio.def.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe

ProgramID: VCExpress.def.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\VCExpress.exe


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