Sorry, this code is copy from two functions and I didn't change tha name hdbc to hdbc1 when I paste in the forum. But that isn't the problem, because in...

Example:

ret = SQLAllocHandle (SQL_HANDLE_DBC, henv1, &hdbc1);

 if (ret != SQL_SUCCESS && ret != SQL_SUCCESS_WITH_INFO)

 {   

  if (ret == SQL_ERROR || ret == SQL_INVALID_HANDLE)

  {

   hdbc1=NULL;

   return FALSE;

  }

 } 

 sprintf (ConnStrIn,

   "DRIVER={SQL Server};SERVER=%s;UID=%s;PWD=%s;DATABASE=%s;",

   ServerName,

   UserName,

   Authentication,

   BDName);

 ret = SQLDriverConnect(hdbc1,      // Connection...