VC6旧项目VS打开存在问题点

1.将CString += char* 出错 : strShowinfo+=ReaderVer  ==>  strShowinfo+= CString(ReaderVer);

2.GetCurrentDirectory函数出错：

char strBuff[256];
strIniFile = GetCurrentDirectory(256,strBuff); //获取当前路径  ==>  GetCurrentDirectory(256, strBuff); //获取当前路径 

3.错误 : “/ZI”和“/Gy-”命令行选项不兼容 :