Directory maintenence

I need a sub routine that will look at the contents of a directory...figure out witch is the oldest file and delete it.....approximatley 10 files in the directory...

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#include <windows.h>

BOOL DeleteOldest(LPCTSTR pstrDirectory)
   lstrcpy(sz, pstrDirectory);
   lstrcat(sz, "\\*.*");

   WIN32_FIND_DATA findData;
   HANDLE hFindHandle = FindFirstFile(sz, &findData);

   // find anything at all?
   if (hFindHandle == INVALID_HANDLE_VALUE)
      return FALSE;

   double dOldest = -1.0;
   TCHAR szOldest[_MAX_PATH];

      if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)

      SYSTEMTIME sysTime;
      FileTimeToSystemTime(&findData.ftLastWriteTime, &sysTime);

      double dVariantTime;
      SystemTimeToVariantTime(&sysTime, &dVariantTime);

      if (dOldest == -1.0 || dVariantTime < dOldest)
         dOldest = dVariantTime;
         lstrcpy(szOldest, findData.cFileName);
   while (FindNextFile(hFindHandle, &findData));


   // directory was empty
   if (dOldest == -1.0)
      return FALSE;

   TCHAR szEraser[_MAX_PATH * 2];
   lstrcpy(szEraser, pstrDirectory);
   lstrcat(szEraser, "\\");
   lstrcat(szEraser, szOldest);

#if 0
   return DeleteFile(szEraser);
   return TRUE;

void main()

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