Strings right padded with NULL charcters in ADODB

VARCHAR column values are right padded with NULL charcters in ADODB.

The SQL:
select companyName from company where companyId = 1;

In ASP Classic and ADODB the corresponding byte array of the results is (40 characters?):
77 121 32 67 111 109 112 97 110 121 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

In .NET the string is correct:
77 121 32 67 111 109 112 97 110 121

The above byte array corresponds to "My Company".

Table definition:
CREATE TABLE `company` (
`companyId` smallint(6) unsigned NOT NULL AUTO_INCREMENT,
`companyName` varchar(100) NOT NULL DEFAULT '',
PRIMARY KEY (`companyId`),
UNIQUE KEY `companyName` (`companyName`)
) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=latin1;