Instead of std::string get() { return m\_strValue; } I would write this: <pre lang="c++"> const std::string& get() const { return m_strValue; } </pre> getDataType() can also be a const method. In you example (with the print function) I would rather use the virtual ToString() method instead of a type enum or casting.

DurgaDevi_hr wrote: The following sample failed to create the DSN, So then why aren't you calling SQLInstallerError() to find out why? "One man's wage rise is another man's price increase." - Harold Wilson "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Good news. But don't forget my comments about error checking, particularly when reading the file. Never assume that the file contents will be correct, however they were created.