File Type 1 Virtual CD Disc Image IconVirtual CD Disc Image
File Format Standard (developed by H+H Software)
Usage Open manually
Popularity ★ ★ ★ ☆ ☆  Average

Exact copy (image) of a CD-ROM, stored as a file on the hard disk; can be used to run CD-based programs without inserting the physical CD; common disc image format recognized by several disc authoring programs.

Open With

IconHH Software Virtual CD

IconSmart Projects IsoBuster

IconEZB Systems UltraISO

Updated February 28, 2007
File Type 2 Generic IconVisual C++ 4 File
File Format Proprietary (Microsoft)
Usage Open manually
Popularity ★ ★ ☆ ☆ ☆  Uncommon

Makefile containing C/C++ source code created by Microsoft Visual C++; may be referenced by a Visual C++ project (.VCPROJ file); VC4 is also an abbreviation used to refer to the Visual C++ 4 program.

Open With

IconMicrosoft Visual C++

IconAny text editor

Updated 2007
Information from the PC File Extensions Reference