The Visual Basic 6 SP6 runtime library, also called vb6 runtime files or vbrun dll set, are required to run programs that were written in Visual Basic 6. It can be difficult to know whether a program needs these files because often an author fails to mention it in the help files or documentation. Typically the way you find out is that you run the program and an error message appears ‘A required .DLL file was not found’, ‘Runtime error’ (caution, this error has lots of different causes) or ‘Error: the file msvbvm60.dll could not be found.’
Another catch is that there are 6 major versions of Visual Basic, each with their own runtime library set (6 sets in total). Plus to make life really difficult, Visual Basic also has service pack releases. Fortunately, these are backward compatible but still can be a pain. The current set is Service Pack 6 (SP6) released in late March 2004 and it will run files written with VB 6 SP1 to SP6 .This package includes msvbvm60.dll, oleaut32.dll, olepro32.dll and others. After you have downloaded the file, simply run it and the files will be copied to their correct location.
DOWNLOAD Visual Basic 6 SP6 Runtime library SP6 (vb6 dlls)