For reasons, I use Visual C++ 98 to do development for an old wafer tester platform. I was just 'upgraded' to a Windows 11 laptop, and after setting up the PATH variables to match my old Windows 10 laptop, I can not compile without getting missing #include errors ('file not found').
To troubleshoot, I have moved the top level #include's to the path with the project workspace DSP file, and no longer get the errors with the top level #include, but that header file has several other #include's that I now get errors for. I have tried putting the paths containing the #includes at the top of my PATH variable (both user and system) without success.
For reference, I have followed these instructions when installing VC++ 98:
Can Visual Studio 6.0 C++ run in Windows 11?).
Example code:
#include "ntshell.h"
Where ntshell.h lives:
C:\path\to\headers\ntshell.h
Entry in PATH variable:
C:\path\to\headers
Results:
fatal error C1083: Cannot open include file: 'ntshell.h': No such file or directory
I have tried the same entry in the INCLUDE variable also, without success.
Is there something I'm missing here?
There is no Visual C++ 98.
For Visual C++ 6.0, add Header directory in Project Setting >C/C++ >Category：(Preprocessor）> Additional include directories.
If add the path to INCLUDE environment variable, then close Visual Studio > delete .vs folder > restart.