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POHow to allow 32 bit apps on 64 bit windows to execute 64 bit apps provided in Windows\System32
 

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  1. POHow to allow 32 bit apps on 64 bit windows to execute 64 bit apps provided in Windows\System32
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    <p>Say you have an app, that you want to provide users ability to browse the system32 directory and execute programs in (like telnet).</p> <p>What is the best method for supporting this when you need to support XP onwards as a client and 2k onwards for server?</p> <p><em>Having written all this up I wonder if it's just too much time/effort in providing a browse to do this, where they could just copy it from explorer. Still requires ability to launch.</em></p> <p>I have found some discussion on <a href="http://www.nynaeve.net/?p=133" rel="nofollow noreferrer">Nynaeve</a>.</p> <p>So far it seems there are the following options</p> <ol> <li>Create a sysnative folder in windows which will allow you to browse/execute 64 bit. Issues are: <ul> <li>only available in Vista/Longhorn, so no support for XP 64</li> <li>leads to different path naming, can't use same path on multiple versions.</li> <li>will be active for whole of windows, not just our app</li> <li>may not (probably is not) appropriate to do when installing the app</li> <li>allows to specify explicitly through path only which version of the app to launch if there is a 32 bit and 64 bit version</li> </ul></li> <li>Use the windows API to temporarily disable the redirection when showing file lists or executing users run commands. Issues are: <ul> <li>Only available on 64 bit - have to mess with GetProcAddress</li> <li>available only under certain service packs</li> <li>must individually identify all locations that this should be implemented</li> <li>user will need to provide seperate information about whether this is a 64 bit app or 32 bit.</li> </ul></li> </ol> <p>If anybody had some example code which displayed a Windows OpenFile dialog (say using MFC CFileDialog) showing nativly for XP/Vista and allowing the viewing of 64 bit system32 directory, that would be awesome.</p> <p>If anybody had an example of launching the named app, that would also be great!</p> <p>Edit:<br> Currently we use CreateProcess for launching the app (which is failing).</p> <pre><code>err = CreateProcess((wchar_t*)exeName.c_str(), (wchar_t*)cmdLine.c_str(), NULL, NULL, FALSE, CREATE_SEPARATE_WOW_VDM, NULL, workingDir.c_str(), &amp;startupInfo, &amp;processInfo); </code></pre>
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