Remote MySQL acccess tool

I am looking for a remote database access tool to be written in both PHP4 (server side) and Visual C++ or Visual Basic (client side) to give access to an email authenication/routing database. I prefer Visual C++. The communications between the client and server should be in XML using either SOAP or XML-RPC over http with SSL. All code must be documented as well as the communications protocol. For the server side all I am looking for is the basic framework to handle the clients functions and work with the supplied database in mysql. The server is running FreeBSD 4.9, apache 1.3.x and PHP 4.3.5. The client must compile cleanly (without any errors) under Visual Studio .net 2003 Professional. The client must also be able to work on Windows 2000/XP. Details on the client include; Ability to login and authenticate from the server. Once the server authenticates a username/password it will send a authentication token to be passed for authentication during every other transaction until a logoff (http sessions). I would like the server to support multiple clients at the some time. Please let me know if this would be a problem. User functions; +ability to add a user. +ability to edit a user. +ability to change passwords. +ability to change their names. +ability to lock out a user (simple flag in database). +ability to delete a user. +Details users should have; +loging name +password +Full name +email address +Comment section of an account Email functions... I have an existing database (see below) that I need to remotly administer. For the "accountuser table"; Flags that are settable by the client are "smtp", "pop", "imap", "active" and "remove". With "pop" and "imap", one or both must be set. "added" is a flag that is set at the server, not by the client. If the "remove" flag is set, the "active" flag must be set to "0". For the "virtual" table; "active" is a flag set by the client. "alias" is the email address and "dest" is the destanation email address. "dest" can have more then one email address entered, but if one is the same as "alias" then an account must exist for it in the "accountuser" table that is active. Multiple entries in the "dest" column are seperated by a "\n" and have no more then 1000 enteries maximum. For the "domain" table; The "active" flag is set at the client. CREATE TABLE accountuser ( id int(8) NOT NULL auto_increment, emailaddress varchar(50) NOT NULL default '', password varchar(30) binary NOT NULL default '', quota int(8) NOT NULL default '0', domain int(8) NOT NULL default '0', smtp enum('0','1') NOT NULL default '0', pop enum('0','1') NOT NULL default '0', imap enum('0','1') NOT NULL default '0', added enum('0','1') NOT NULL default '0', active enum('0','1') NOT NULL default '0', remove enum('0','1') NOT NULL default '0', updatequota enum('0','1') NOT NULL default '0', quotausage varchar(10) NOT NULL default '', quotatime datetime default NULL, PRIMARY KEY (id), UNIQUE KEY emailaddress (emailaddress), KEY id (id) ) TYPE=MyISAM; CREATE TABLE virtual ( id int(8) NOT NULL auto_increment, alias varchar(255) NOT NULL default '', dest longtext, username varchar(50) NOT NULL default '', domain int(8) NOT NULL default '0', active enum('0','1') NOT NULL default '0', PRIMARY KEY (id), UNIQUE KEY alias (alias) ) TYPE=MyISAM; CREATE TABLE domain ( id int(8) NOT NULL auto_increment, domain_name varchar(255) NOT NULL default '', active enum('0','1') NOT NULL default '0', PRIMARY KEY (id), UNIQUE KEY domain_name (domain_name) ) TYPE=MyISAM;