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<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xml:lang="en" lang="en" xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <!-- MOTW-DISABLED saved from url=(0014)about:internet --> <title>MTS Support</title> <link rel="StyleSheet" href="css/informixcli.css" type="text/css" media="all" /> <link rel="StyleSheet" href="css/webworks.css" type="text/css" media="all" /> <script type="text/javascript" language="JavaScript1.2" src="wwhdata/common/context.js"></script> <script type="text/javascript" language="JavaScript1.2" src="wwhdata/common/towwhdir.js"></script> <script type="text/javascript" language="JavaScript1.2" src="wwhdata/common/wwhpagef.js"></script> <script type="text/javascript" language="JavaScript1.2"> <!-- var WebWorksRootPath = ""; // --> </script> <script type="text/javascript" language="JavaScript1.2"> <!-- // Set reference to top level help frame // var WWHFrame = WWHGetWWHFrame("", true); // --> </script> <script type="text/javascript" language="JavaScript1.2" src="scripts/expand.js"></script> </head> <body class="" style="background-color: #FFFFEE;" onload="WWHUpdate();" onunload="WWHUnload();" onkeydown="WWHHandleKeyDown((document.all||document.getElementById||document.layers)?event:null);" onkeypress="WWHHandleKeyPress((document.all||document.getElementById||document.layers)?event:null);" onkeyup="WWHHandleKeyUp((document.all||document.getElementById||document.layers)?event:null);"> <br /> <div class="WebWorks_Breadcrumbs" style="text-align: left;"> <a class="WebWorks_Breadcrumb_Link" href="informixcli.22.01.html#106973">17 The Informix Driver</a> : MTS Support</div> <hr align="left" /> <blockquote> <div class="head_1"><a name="106973">MTS Support</a></div> <div class="Body"><a name="154526">On Windows, the driver can take advantage of Microsoft Transaction Server (MTS) </a>capabilities, specifically, the Distributed Transaction Coordinator (DTC) using the XA Protocol. For a general discussion of MTS and DTC, refer to the help file of the Microsoft Transaction Server SDK.</div> <div class="Body"><a name="154527">NOTE: The DataDirect Connect </a><span class="forbody">for</span> <span class="APIbody">ODBC</span> 32-bit drivers can operate in a 64-bit Windows environment; however, they do not support DTC in this environment. Only the DataDirect Connect64 <span class="forbody">for</span> <span class="APIbody">ODBC</span> 64-bit drivers support DTC in a 64-bit Windows environment.</div> <div class="Body"><a name="106982">To enable DTC support, you must be using Informix Connect version 2.20 or higher clients.</a></div> <div class="Body"><span class="Action_bold"><a name="106983">To enable support for the DTC:</a></span></div> <div class="list_procedure_first_outer" style="margin-left: 0pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_procedure_first_inner" style="width: 18pt; white-space: nowrap;"> <span class="Numbers">1 </span> </div> </td> <td width="100%"> <div class="list_procedure_first_inner"><a name="106984">Use the </a><span class="Action_bold">Setnet32</span> utility supplied by Informix to define:</div> </td> </tr> </table> </div> <div class="list_bulleted_proc_outer" style="margin-left: 18pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_bulleted_proc_inner" style="width: 18pt; white-space: nowrap;">â? </div> </td> <td width="100%"> <div class="list_bulleted_proc_inner"><a name="106985">The INFORMIXDIR environment variable, which identifies the location of the client </a>programs, library files, message files, header files, and other Informix software components</div> </td> </tr> </table> </div> <div class="list_bulleted_proc_outer" style="margin-left: 18pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_bulleted_proc_inner" style="width: 18pt; white-space: nowrap;">â? </div> </td> <td width="100%"> <div class="list_bulleted_proc_inner"><a name="106986">The INFORMIXSERVER environment variable, which identifies the default </a>database server </div> </td> </tr> </table> </div> <div class="list_bulleted_proc_outer" style="margin-left: 18pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_bulleted_proc_inner" style="width: 18pt; white-space: nowrap;">â? </div> </td> <td width="100%"> <div class="list_bulleted_proc_inner"><a name="106987">An Informix server, which identifies either an existing Informix database server or a </a>new one</div> </td> </tr> </table> </div> <div class="list_bulleted_proc_outer" style="margin-left: 18pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_bulleted_proc_inner" style="width: 18pt; white-space: nowrap;">â? </div> </td> <td width="100%"> <div class="list_bulleted_proc_inner"><a name="106988">A host name, which identifies the host computer with the database server you want </a>to use</div> </td> </tr> </table> </div> <div class="list_bulleted_proc_outer" style="margin-left: 18pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_bulleted_proc_inner" style="width: 18pt; white-space: nowrap;">â? </div> </td> <td width="100%"> <div class="list_bulleted_proc_inner"><a name="106989">A user name, which identifies a user name for an account on the currently selected </a>host computer</div> </td> </tr> </table> </div> <div class="list_bulleted_proc_outer" style="margin-left: 18pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_bulleted_proc_inner" style="width: 18pt; white-space: nowrap;">â? </div> </td> <td width="100%"> <div class="list_bulleted_proc_inner"><a name="106990">A password for the specified user name, if required</a></div> </td> </tr> </table> </div> <div class="Body_Indent"><a name="106991">When enlisting in a distributed transaction, the Informix clients only use the defaults </a>specified in <span class="Action_bold">Setnet32</span>.</div> <div class="list_procedure_outer" style="margin-left: 0pt;"> <table border="0" cellspacing="0" cellpadding="0" summary=""> <tr style="vertical-align: baseline;"> <td> <div class="list_procedure_inner" style="width: 18pt; white-space: nowrap;"> <span class="Numbers">2 </span> </div> </td> <td width="100%"> <div class="list_procedure_inner"><a name="106992">Run the </a><span class="Action_bold">regcopy</span> utility provided with INFORMIX-Connect to copy the registry entries created by <span class="Action_bold">Setnet32</span> to an area in the registry that is accessible by the DTC. The DTC is a service, and services do not search for configuration information in the Windows registry where <span class="Action_bold">Setnet32</span> stores client products environment variables. Therefore, if you do not run regcopy after setting the defaults in <span class="Action_bold">Setnet32</span>, enlistment in a distributed transaction will fail.</div> </td> </tr> </table> </div> <div class="Body"><a name="106993">For information on using the </a><span class="Action_bold">Setnet32</span> and <span class="Action_bold">regcopy</span> utilities, see the Informix documentation.</div> <script type="text/javascript" language="JavaScript1.2"> <!-- // Clear related topics // WWHClearRelatedTopics(); document.writeln(WWHRelatedTopicsInlineHTML()); // --> </script> </blockquote> <script type="text/javascript" language="JavaScript1.2"> <!-- document.write(WWHRelatedTopicsDivTag() + WWHPopupDivTag() + WWHALinksDivTag()); // --> </script> </body> </html>
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