# Precompiled Header Support

There are some differences in how precompiled header (PCH) files are supported between the Intel® oneAPI DPC++/C++ Compiler and the Microsoft* Visual C++* Compiler. These differences include the following:

- The PCH information generated by the Intel oneAPI DPC++/C++ Compiler is not compatible with the PCH information generated by the Microsoft Visual Studio Compiler.

- The Intel oneAPI DPC++/C++ Compiler does not support PCH generation and use in the same translation unit.

Parent topic: Microsoft* Compatibility