Question

dBase (dbf) driver for Windows x64 system

Asked by: ragulin

Hi,
I've read plenty of posts about incompatibility of standard OLEDB and ODBC drivers with x64 Windows systems. But due to specific reasons I cannot run my IIS in 32bit mode. Is there any free or commercial ODBC driver which would allow me to read DBF files and would work under 64bit system? Thanks for any help!

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Asked On
2009-09-18 at 01:59:46ID24742597
Topics

dBase

,

.NET

,

Windows 64-bit

Participating Experts
2
Points
500
Comments
10

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Answers

 

by: gtworekPosted on 2009-09-18 at 02:15:50ID: 25364042

Try with Microsoft OLE DB Provider for Visual FoxPro 9.0 from http://www.microsoft.com/downloads/details.aspx?familyid=e1a87d8f-2d58-491f-a0fa-95a3289c5fd4&displaylang=en

It allows you to read DBF files.

 

by: pcelbaPosted on 2009-09-18 at 02:41:11ID: 25364197

Sybase has released ODBC driver which reads DBFs: http://www.sybase.com/files/Data_Sheets/advantage_ODBC_ds.pdf
You can try it together with their Advantage Database Server evaluation:
http://www.sybase.com/products/databasemanagement/advantagedatabaseserver

 

by: ragulinPosted on 2009-09-18 at 03:44:19ID: 25364488

Tanks for your responses!
1) Microsoft OLE DB Provider for Visual FoxPro 9.0 is not available in x64 version therefore I cannot use it.
2) I've tried Sybase drivers but they cannot read dBase III or dBase IV files - this condition is essential for my solution.

 

by: gtworekPosted on 2009-09-18 at 03:48:02ID: 25364511

I've just tried with Microsoft OLE DB Provider on my x64 OS. Works perfectly.

 

by: ragulinPosted on 2009-09-18 at 04:08:11ID: 25364615

Maybe you run your app and IIS under 32bit mode. This is the only way how to fix it but I'm not satisfied with yuch a workaround.
Here are the steps I've made:
1) Download and install Microsoft OLE DB Provider for Visual FoxPro 9.0
2) Driver is visible ony in C:\Windows\SysWOW64\odbcad32.exe (this is 32bit ODBC console)
3) Driver is NOT visible in C:\Windows\System32\odbcad32.exe (64bit)
4) After running my app which is trying to use the driver "Driver not found" error appears.
5) As I mentioned the only way is to run app (and IIS) under 32bit mode.

 

by: pcelbaPosted on 2009-09-18 at 05:29:51ID: 25365174

Yes, all resources and discussions are saying it is impossible to use 32 bit ODBC drivers from 64 bit applications...

http://www.microsoft.com/downloads/details.aspx?FamilyID=000364db-5e8b-44a8-b9be-ca44d18b059b&displaylang=en

One answer even was to connect 32 bit SQL Server from 64 bit IIS and use linked DBF tables on the SQL Server...

 

by: ragulinPosted on 2009-09-18 at 06:12:32ID: 25365526

Could you please describe more the last option - to connect DBF files over sql server?

 

by: pcelbaPosted on 2009-09-18 at 14:44:30ID: 25370254

It was published somewhere like a (crazy) work around. Install 32 bit SQL Server and define Linked server to a folder containing your DBFs. This linked server uses 32 bit VFP OLE DB provider. Now you may connect from 64 bit IIS to the 32 bit SQL Server via 64 bits SQL driver and access DBF tables via Linked server...

 

by: ragulinPosted on 2009-09-19 at 02:00:30ID: 25372139

Hey, you saved me! Linked server really seams to be a solution, cause anyway my SQL server runs in 32bit mode. I found more information at http://blog.dbase.integralwebsolutions.co.za/2008/10/accessing-your-dbf-tables-via-linked.html

 

by: pcelbaPosted on 2009-09-19 at 03:34:46ID: 25372377

Glad to help and thanks for the blog link.

20120131-EE-VQP-002

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