list of ODBC system DSNs is truncated in Windows XP

"A list of ODBC system DSNs is truncated when the total number of characters that are used in all the DSN names is more than 7,500 on a Windows XP-based computer"

This problem occurs because the buffer that stores DSN names is limited. This limited buffer prevents all the DSNs from being displayed.

Microsoft has released Hotfix for this problem,for more details follow the link below

http://support.microsoft.com/kb/950982/