---------------------------------------------------------
Microsoft Data Access Components version 2.1 Readme File
---------------------------------------------------------

(c) 1998 Microsoft Corporation. All rights reserved.

This document provides late-breaking or other information that supplements the Microsoft Data Access Components (MDAC) documentation.

------------------------
1. MDAC TECHNICAL NOTES
------------------------

MDAC Release Notes

This file, MDACRead.txt, contains technical notes, information on bugs and workarounds, and information too late to include in the documentation for the Microsoft Data Access Components. 

The release notes for each of the Microsoft Data Access Components can be found in the following locations:
*  ADO and RDS 2.1
     <drive>:\Program files\Common files\System\ADO\ADOreadme.txt
*  ADO MD
     <drive>:\Program files\Common files\System\ADO\ADOMDreadme.txt
*  ADOX
     <drive>:\Program files\Common files\System\ADO\ADOXreadme.txt
*  JRO
     <drive>:\Program files\Common files\System\ADO\JROreadme.txt
*  OLE DB Provider for ODBC
     <drive>:\Program files\Common files\System\OLE DB\MSDASQLreadme.txt
*  SQL ODBC Driver
     <drive>:\<windir>\<system>\SQLSRdMe.txt
*  SQL OLE DB Provider
     <drive>:\Program files\Common files\System\OLE DB\SQLOLEDB.txt
*  Oracle ODBC Driver
     <drive>:\<windir>\<system>\MsOracle32Readme.txt
*  Oracle OLE DB Provider
     <drive>:\Program files\Common files\System\OLE DB\MSOrclOLEDBreadme.txt
*  Visual FoxPro ODBC Driver
     <drive>:\<windir>\<system>\Vfpodbc.txt
*  OLE DB Service Components
     <drive>:\Program files\Common files\System\OLE DB\Msdasc.txt

---------------------------------------------------
2. MDAC KNOWN BUGS, LIMITATIONS, AND WORKAROUNDS
---------------------------------------------------
2.1 When using ADSI 2.0 with MDAC 2.1, ADSI will disable its ADO functionality. Other features of ADSI will continue to work. MDAC 2.1 does not affect accessing ADSI via ADSI Interfaces.

For example, opening an ADO Connection object in ADSI will fail when MDAC 2.1 is installed.

Con.Provider = "ADsDSOObject"
Con.Open "Active Directory Srv Interface" <= This line fails

ADSI will be posted a resolution to this problem on http://www.microsoft.com/adsi 

2.2 On Windows 95, if you install MDAC from a UNC, you receive an error. This error does not occur if you map a drive instead of using the UNC, even if the drive is not persistent. 

2.3 The MDAC 2.1 redist is not supported on NT 3.51 or Terminal Server.

2.4 If you install MDAC 2.1 on a computer running applications that access SQL Server 6.5 through the OLE DB Provider for SQL Server or the SQL Server ODBC Driver, and if the catalog stored procedures installed on that SQL Server 6.5 are not current, the provider or driver will generate the following warning message:

OLE DB Provider for SQL Server:
The catalog stored procedures installed on server <server_name> are version <version#>; version <version#> or later is required to support IDBSchemaRowset.  Please contact your system administrator.

SQL Server ODBC Driver:
The ODBC catalog stored procedures installed on server <server_name> are version <version#>; version <version#> or later is required to ensure proper operation.  Please contact your system administrator.

If an application ignores this message, it may experience some problems (such as loss of schema information).

To correct this:
* You must install instcat.sql that comes with MDAC 2.1 on the 6.5 server
- or -
* Install SQL Server 6.5 SP5 on the server. Installing SQL Server 6.5 SP5 automatically runs instcat.sql.



