#include<windows.h>
int main(void)
{
    void GetSysInfo()
        char szComputerName[MAXBYTE]={0};
    char szUserName[MAXBYTE]={0};
    unsigned long nSize=MAXBYTE;
    OSVERSIONINFO OsVer;
    OsVer.dwOSVersionInfoSize=sizeof(OSVERSINIFO);
    GetVersionEx(&OsVer);
    if(OsVer.dwPlatformId==VER_PLATFORM_WIN32_NT)
    {
        if(OsVer.dwMajorVersion==5 && OsVer.dwMinorVersion ==1)
        {
            printf("windows XP %s \r \n",OsVer.szCSDVersion);

        }
        else if(OsVer.dwMajorVersion ==5 && OsVer.dwMinorVersion ==0)
        {
            printf("winodws 2k \r \n");
        }
    }
    else
    {
        printf("Ohter System \r\n");
    }
    GetComputerName(szComputerName,&nSize);
    printf("cOMPUTER NAME IS %s \r\n");
    nSize=MAXBYTE;
    GeTuserName(szUserName,&nSize);
    printf("User Name is %s \r\n",szUserName);


}