高手请指教，关于MDAC版本冲突与3706错误！

三楼の郎 2002-05-20 09:56:55

早先编写了一个用ADO访问数据库的软件，当时的MDAC版本是2.1，打包后安装在大部分的机器上运行都没问题，但是在安装了MDAC2.5的机器上运行出现3706错误。升级MDAC至2.7后，修改源程序，重新引用ADO，重新打包，安装时出现TLB和部分DLL文件注册不正确的错误，修改SETUP.lst文件，该错误被解决，但是仍然出现3706错误。

那位高手能告诉我，我该怎么做，总不能让用户重装系统或安装VB吧。

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Fanks 2002-05-20

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将安装包内的关于MDAC文件去掉，安装程序前先安装MDAC组件即可。

三楼の郎 2002-05-20

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好主意，我怎么没想到啊！谢谢！！！

最新版的MDAC（Microsoft Data Access Components）下载。 ========================================== Microsoft Data Access Components (MDAC) Purpose The Microsoft Data Access Components (MDAC) SDK documents the key technologies that enable Universal Data Access, Microsoft's strategy for providing access to information across the enterprise. Microsoft Data Access Components include ActiveX Data Objects (ADO), OLE DB, and Open Database Connectivity (ODBC). Data-driven client/server applications deployed over the Web or a LAN can use these components to easily integrate information from a variety of sources, both relational (SQL) and nonrelational. If you have questions or need detailed information about properly redistributing MDAC, see Redistributing MDAC for a description of the distribution requirements for MDAC. ActiveX Data Objects (ADO) Microsoft ActiveX Data Objects (ADO) provides consistent, high-performance access to data and supports a variety of development needs, including the creation of front-end database clients and middle-tier business objects that use applications, tools, languages, or Internet browsers. The primary benefits of ADO are ease of use, high speed, low memory overhead, and a small disk footprint. ADO provides an easy-to-use interface to OLE DB, which provides the underlying access to data. It uses a familiar metaphor—the COM Automation interface—available from all leading Rapid Application Development (RAD) tools, database tools, and languages. OLE DB Microsoft OLE DB is a set of interfaces that expose data from a variety of relational and nonrelational sources by using the Component Object Model (COM). OLE DB interfaces provide applications with uniform access to data stored in diverse information sources. These interfaces support the amount of DBMS functionality appropriate to the data store, enabling the data store to share its data. OLE DB comprises a programmatic model consisting of data providers, which contain and expose data; data consumers, which use data; and service components, which process and transport data (such as query processors and cursor engines). In addition, OLE DB includes a bridge to ODBC to enable continued support for the broad range of ODBC relational database drivers. Open Database Connectivity (ODBC) The Microsoft Open Database Connectivity (ODBC) interface makes it possible for applications to access data from a variety of DBMSs. ODBC permits maximum interoperability—an application can access data in diverse DBMSs through a single interface. Furthermore, that application will be independent of any DBMS from which it accesses data. Users of the application can add software components called drivers, which create an interface between an application and a specific DBMS. Components of the MDAC SDK Microsoft ActiveX Data Objects (ADO) This section contains Programmer's References for ADO, ADOX, ADO MD, and RDS, as well as samples documentation. Microsoft OLE DB This section documents the OLE DB and OLE DB for OLAP interfaces, including a Programmer's Reference, documentation for various OLE DB providers, and samples. Microsoft Open Database Connectivity (ODBC) This section documents the ODBC interface, including a Programmer's Reference, documentation for various ODBC drivers, and samples.

此处特记录一种查看MDAC版本的方法。在注册表中HKEY_LOCAL_MACHINE\Software\Microsoft\DataAccess位置，在“详细信息”窗格的名称列中，查找 FullInstallVer 和 Version。其中的每个注册表项在数据列中都有相应的版本信息，在里面就可以看到MDAC的版本号了

MDAC 2.8最新版本MDAC 2.8最新版本

MDAC MDAC2.6 MDAC2.8 MDAC2.5 MDAC2.7

解决.net FrameWork数据提供程序要求 Microsoft Data Access Components (MDAC) 。请安装Microsoft Data Access Components(MDAC)2.6或更高版本

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