Provider=Sybase.ASEOLEDBProvider. 2 ;Initial
Catalog=MyDataBase;Password=MyPwd;User ID=sa;Data Source="";Extended
Properties="";Server Name=MyServer;Network Protocol=Winsock;Server Port
Address= 5004 ;HA Server Name="";HA Server Port Address="";Character
Set=cp1251;Language="";Application Name="";Optimize Prepare=Partial;Select
Method=Direct;Raise Error Behavior=MS Compatible;Print Statement
Behavior=MS Compatible;Extended ErrorInfo=FALSE;Stored Proc Row Count=Last
Statement Only;WorkStation ID="";Row Cache Size= 50 ;Enable Quoted
Identifiers= 0 ;Packet Size= 1 ;Default Length For Long
Data= 8192 ;UseSybaseLDAP=False;SybaseLDAPURL="";SybaseServerName= 389 ;UseLDAPHAServer="";Use
 SSL= 0 ;Trusted Root File Name="";Interfaces File="";Interfaces File Server
Name="";EnableSPColumnTypes=True;TruncateTimeTypeFractions= 1 

 pConnection = new TADOConnection( 0 );
AnsiString asConnectionString = "Provider=Sybase.ASEOLEDBProvider;"
"Server Name=" + asNetworkAddress + ";"
"Initial Catalog=" + asDatabase + ";";
pConnection->ConnectionString = asConnectionString;
pConnection->LoginPrompt = false;
pConnection->Open(asUserName, asPassword);
return pConnection->Connected;

asNetworkAddress - имя машины, порт (например: Computer,  5000 )
asDatabase - имя БД (например: DataBase)