what is csc.exe
What is the csc.exe Error. The csc.exe file is an executable file (.exe), which is part of the Microsoft .NET framework. It is a legitimate Microsoft process and comes pre-installed on many Windows operating systems. The csc.exe file works as the Visual C# Command Line Compiler for the Windows operating system. It helps programmers compile useful applications on their systems. Though it is useful, the csc.exe file isn't vital for the Windows OS as it isn't a core system file.