Hi I tried to put the same program in Win8.0 and it works without the need to sign-up WINIO. I would like to know what is the different between Win8 and 8.1? Thanks

Hi All, I wrote a C++ program and use WINIO to control some general I/O interface card. However, when I run the program under Win8.1, WinIO initialization error always prompt out. Then, I put the same program under Win8.0, there is not any error prompts. Would there be anyone who understand what's the reason? Thanks any help. Eric

When I perform DWORD dwMemVal; bool bResult; HANDLE hPhysicalMemory; PBYTE pbLinAddr; // Call InitializeWinIo to initialize the WinIo library. ShutdownWinIo(); bResult = InitializeWinIo(); the bResult keeps 0, so I cannot initialize WinIO However, I tried to create a virtual machine with WinXP installed, using the same sourecode without any problem. Thus, I guess it is caused by Win8.1 UEFI which protect the BIOS controlled by WinIO. Would there be anyone who can help me to fix this problem? Thanks a lot for any help.

Hi All, I am writing a program to control some I/O card under Win8.1 environment, however, initialisation winio always fail. There is no problem under WinXP or Win7, so I guess it is caused by Win8.1 UEFI blocked the WINIO. Is there anyone who can give me a solution? Thanks Eric