How To Obtain/Distribute the Compatibility Layer in VB 3.0

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How to Obtain the Compatibility Layer

To obtain the Compatibility Layer, choose one of the following methods:

• Obtain the file from the Microsoft Download Center.The following file is available for download from the Microsoft Download Center:
  

  Comlyr.exe

  For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

  119591 How to Obtain Microsoft Support Files from Online Services

  Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.
• If you are unable to access the source listed above, you can have COMLYR.EXE mailed or faxed to you by calling Microsoft Technical Support Monday through Friday, 6:00 a.m. to 6:00 p.m. Pacific time at (425) 646-5105. If you are outside the United States, contact the Microsoft subsidiary for your area. To locate your subsidiary, go to the Microsoft Web site:

  http://www.microsoft.com/worldwide

• Purchase the Microsoft Access Developer's Toolkit (ADT) version 2.0 available through resellers or direct from Microsoft by calling the Microsoft Sales Information Center at 800-426-9400. The suggested retail price is $495 for new users. However, until August 31, 1994, owners of Microsoft Access Distribution Kit version 1.1 and Visual Basic version 3.0 will receive $100 off price via a rebate. All the files you need, including the Jet 2.0 database engine, are included in the ADT.
• Purchase the Microsoft Office Developer's Kit (ODK) and Microsoft Access version 2.0. Both products are available through resellers or direct from Microsoft by calling the Microsoft Sales Information Center at 800-426-9400. The suggested retail price for the ODK is $99.95. However, if you own Visual Basic version 3.0 Professional Edition, you can get the ODK for only $49.95 by calling the Microsoft Sales Information Center at 800-426-9400.
  
  The ODK will also be available as a standard component in all new packages of Visual Basic version 3.0 Professional Edition. The ODK comes on CD-ROM only.

The Compatibility Layer that you download from the MSL or that is included in the ODK does not include the Microsoft Access version 2.0 (Jet 2.0) database engine file. The 2.0 database engine comes with Microsoft Access or the ADT. Therefore, to use the Compatibility Layer, you need to purchase Microsoft Access version 2.0 or the ADT. The license in the ODK permits distribution of this file with Visual Basic version 3.0-based applications. Suggested retail price for Microsoft Access version 2.0 is $495. Until August 31, 1994, current Microsoft Access version 1.x users can upgrade for $99. And those users upgrading from competing products and from Microsoft Office can purchase Microsoft Access version 2.0 for $129.

How to Distribute the Compatibility Layer

After obtaining the Compatibility Layer from any of the options listed above, Microsoft allows propagation of the Compatibility Layer files free- of-charge to other eligible Visual Basic licenses within the same organization.

Applications created with Visual Basic and the Microsoft Access version 2.0 (Jet 2.0) database engine are, as before with Microsoft Access version 1.1, fully distributable royalty-free to application end users. The following files may be distributed with your Visual Basic applications:

MSAJT200.DLL  -- The Microsoft Access 2.0 database engine
MSAJT112.DLL  -- The Microsoft Access 2.0 compatibility layer.
VBDB300.DLL   -- Microsoft Visual Basic to Access support DLL.

BTRV200.DLL   -- Btrieve ISAM driver library.
PDX200.DLL    -- Paradox ISAM driver library.
XBS200.DLL    -- Microsoft FoxPro ISAM driver library.

PDBJET.DLL    -- Crystal Reports file.
PDCTJET.DLL   -- Crystal Reports file.
PDIRJET.DLL   -- Crystal Reports file.