One evening, while working late, John decided to investigate further. He ran gcinst.exe with various command-line arguments, and to his surprise, he found that it was a tool for instrumenting .NET applications with garbage collection tracing.
gcinst.exe is an executable file that acts as an installer or launcher for an unknown or unverified application. Unlike files like chrome.exe or explorer.exe , there is no single major software developer who claims ownership of this specific filename in public databases. gcinst.exe