A Dynamic Link Library, or DLL as it is commonly known, is how Microsoft implements its shared library concept across the Windows Operating system. DLLs can be used to store or combine codes, data or resources across different version of Windows. DLLs help applications in one operationg system to work successfully on newer versions of the operating system, so long as the newer version has the required interfaces and functionality. In Windows 7 DLLs are crucial for running or launching several types of programmes. A message may appear saying that VCOMP100.DLL is missing. This error message means the user needs to install the missing VCOMP100.DLL in order to launch the programme successfully in Windows 7 .
The following error message may appear when launching a particular programme in Windows 7:
This program can't start because VCOMP100.DLL is missing from your computer