Visual Basic 6.0 run-time files (VBRun60.exe) is a self-extracting executable file that installs the Microsoft Visual Basic run-time files that all applications created with Visual Basic 6.0 need in order to run.
In other words, all VB6 users should download and install Visual Basic 6.0 run-time files to make sure that all elements of VB6 work just fine. For suspicious persons: Don't worry about it. It's 100% clean. The installation is very simple and no matter how u install it: after/before VB6 installation.