How to Use regular expression in VC6?

Hi Community,

How can I use regular expression in VC6? I tried below sample code but it gives me an error as VC6 not supported atlcoll.h.

// catlregexp_class.cpp
#include <afx.h>
#include <atlrx.h>

int main(int argc, char* argv[])
{
    CAtlRegExp<> reUrl;
    // Five match groups: scheme, authority, path, query, fragment
    REParseError status = reUrl.Parse(
        "({[^:/?#]+}:)?(//{[^/?#]*})?{[^?#]*}(?{[^#]*})?(#{.*})?" );

    if (REPARSE_ERROR_OK != status)
    {
        // Unexpected error.
        return 0;
    }

    CAtlREMatchContext<> mcUrl;
    if (!reUrl.Match(
"http://search.microsoft.com/us/Search.asp?qu=atl&boolean=ALL#results",
        &mcUrl))
    {
        // Unexpected error.
        return 0;
    }

    for (UINT nGroupIndex = 0; nGroupIndex < mcUrl.m_uNumGroups;
         ++nGroupIndex)
    {
        const CAtlREMatchContext<>::RECHAR* szStart = 0;
        const CAtlREMatchContext<>::RECHAR* szEnd = 0;
        mcUrl.GetMatch(nGroupIndex, &szStart, &szEnd);

        ptrdiff_t nLength = szEnd - szStart;
        printf_s("%d: \"%.*s\"\n", nGroupIndex, nLength, szStart);
    }

    return 0;
}

regards,
titanium