What is the purpose of CLS files and DLL files in VB?

Question

Does anyone have a good explanation of what the different meaning of the CLS, DLL, and VBP files in a VB project are?

Answer 1

• CLS file is a class file containing the source code for one class.
• VBP file is a project file. You open a VBP in the VB6 IDE to browse or edit the code for that project.
• Projects can also be included in groups (VBG files), roughly equivalent to what .Net calls solutions.
• DLL file is a compiled executable library built from your VB6 source code. See Wikipedia

The VB6 manual explains many of the file extensions, including CLS and VBP.