I'm not exactly sure what is eVC4, but looks like the installation is not compete, so "iostream.h" can not be found. If this is the case, I suggest you to reinstall the software instead of looking for a file and copy it to your system. Since it is very likely to happen that after patching this header file in, you will find some other compilation error about some other files.

I also think the question is coming from the uncompletely installation.
If you don't want to install again ,but just want to solve the question now quickly,there is anther way to solve this question you can choose.
You can get "iostream" to instead of "iostream.h", "iostream" is the I/O for the newest standard C++,but when you do this you must write "using namaspace std;" for using that head file since something is in the space.
So,insteading of "iostream.h",you just need write :
#include <iostream>
using namespace std;

Dear myajax95 and wfpb,

Thank you very much for your relpies.

I tried to write the simple code with #include <iostream>
using namespace std;
However, I still encounter the same error "fatal error C1083: Cannot open include file: 'iostream': No such file or directory".
I wonder how I should solve this problem. Thank you very much.

My simple coding is as follows:

#include <iostream>
using namespace std;

int main(void)
{
cout << "Hello!"
<< endl
<< "Welcome to Visual C++"
<< endl << endl;
return 0;
}


p.s., eVC4 stands for "Microsoft Embedded Visual C++ 4.0.

My QQ number is 460809865.If you want,I can send these files which you need.

Dear wfpb,

I haven't got QQ but my email address is lcnz@hotmail.com.

Thanks for your help and thanks for sharing the files!!

I 'll send to you at once,but last time.
If the problem also can't be solved,I suggest you'd better download a VC again ,because we can't keep in touch with each other in time which will makes some trouble.

It's OK now.

大概是说编译不通过，因为缺少iostrean.h头文件吗？？？
我外语不太好
wfpb
能也发那个文件给我不
我的email是jallen007@126.com

trouble relly comes...bz...

我是能看不能写啊，哈哈