Last Updated December 3, 2000

MS Visual C++ 6.0 Extensions

• .DSW - Developer Studio Workspace
• .DSP - Developer Studio Project
• .H - Header (file)
• .CPP - C Plus Plus ( implementation file )
• .CLW - Class Wizard ( file )
• .IDL - Interface Definition Language
• .ODL - Object Description Language (for MFC OLE controls)
• .TLB - Type Library (file)
• .TLH - Type Library Header (file)
• .TLI - ... (file)
• .PCH - Precompiled Header (file)
• .RGS - Registry Script (file)
• .MK - Make (file)
• .OBJ - Object (file)
• .APS - Application Studio (file)
• .RC - Resource ( file )
• .RES - Resource Object (file)
• .OPT - (User )Options (file)
• .NCB - No Compile Browser (file)
• .DEF - Definition (file)
• .PLG - ... (file)
• .IDB - ... (file)
• .PDB - ... (file)
• .TRG - ... (file)
• .ILK - ... (file)
• .LIB - LIbrary (file)
• .RC2 - ... (file)
• .HPJ - Help Project (file)
• .CNT - Content (file)
• .LIC - Licence (file)
• .IDB - ... (file)
• .BSC - ... (file)
• .SBR - ... (file)
• .ICO - ... (file)

File Types Created for Visual C++ Projects
Q132340 :: Common File Extensions Used by Visual C++
Q156513 :: Which Visual C++ Files to Add to Source-Code Control

InstallShield Extensions

• .IPR - InstallShield Project (file)

MS Visual Visual InterDev 6.0 Extensions

• .SLN - Solution (file)
• .VIP - Visual InterDev Project (file)
• .DSP - Developer Studio Project
• .ASP - Active Server Page ( file )
• .ASA - Active Server Application ( file )
• .WDM - Web Site Diagram ( file )

MS Visual VisualBasic 6.0 Extensions

• .VBW - Visual Basic Workspace
• .VBP - Visual Basic Project
• .FRM - Form (file)

MS Internet Information Server Extensions

• .IDC - Internet Database Connector
• .IDQ - Internet Data Query

Graphics Extensions

• .GIF - Graphics Interchange Format

Video Extensions

• .AVI - Audio and Video Information

Sound Extensions

MS Office 2000 Extensions

• .DOC - Word Document
• .XLS - Excel Worksheet
• .MDB - Microsoft Database
• .XLT - Excel Template
• .XLW - Excel Workspace

Non Classified Extentions

• .TXT - Text File
• .VBS - Visual Basic Script
• .EXE - Executable ( file )
• .CSV - Comma Separated Values
• .PDF - Portable Document Format