Re: stringstream don't work in Windows Server 2003 SP2

David Wilkinson <>
Wed, 09 Jan 2008 08:20:39 -0500
Thomas Schilf wrote:


we have many programs, that was build with VC6.0.
Since SP2 for "Windows Server 2003" our applications don't work correct.
Sample is below.

We have found the difference in the msvcp60.dll. Since SP2 it is a V7.0.x
and not a V6.x. The question is: Why are the Dll's not compatible and what
are other surprises in the new Dll ? In the MSDN we don't found informations
about this.

A workaround is to copy by hand the old Dll in the folders of our programs.
That???s very circuitously because our software is installed by our customers
and we can't change the setup.
Do we get other problems with this workaround ?


Correct output in Windows XP / Windows Server 2003 SP1:
   In: 'ab'
   Out: '0000ab'

Wrong output in Windows Server 2003 SP2:
   In: 'ab'
   Out: 'ab'


#include <string>
#include <iostream>
#include <iomanip>
#include <sstream>

using namespace std;

int main( int argc, char *argv[ ], char *envp[ ] )
    string str1 = "ab";
    string str2;
    ostringstream strm;

    strm << right << setfill('0') << setw(6) << str1;
    str2 = strm.str();

    cout << "In: '" << str1 << "'" << endl;
    cout << "Out: '" << str2 << "'" << endl;

    return 0;


It was always the case, on all OS's, that you are responsible for making
sure that required C/C++/MFC library DLL's are present on the target
system. You have just been lucky in the past.

But do you not have a setup program for your application? If so, you can
just install msvcp60.dll?

Alternatively, can you use static linking (/MT) in your application?
This is what I always do.

BTW, there are bugs in the STL implementation in VC6, which can be
corrected by downloading the patches at the DinkumWare site. However,
these do not patch msvcp60.dll. Another advantage of static linking...

David Wilkinson
Visual C++ MVP

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