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223 lines
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223 lines
11 KiB
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html><head>
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<title>UAC plug-in readme</title>
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<script type="text/javascript">
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function NavGL(q){window.open("http://www.google.com/search?hl=en&btnI=I&num=2&q="+escape(q));return 0;}
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</style>
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</head><body>
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<h1 id="docHdrHdln">UAC plug-in</h1>
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<code><pre>
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Interactive User (MediumIL) Admin user(HighIL)
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+++[Setup.exe]++++++++++++++ +++[Setup.exe]++++++++++++++
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+ + + +
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+ ***[.OnInit]************ + + ***[.OnInit]************ +
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+ * UAC::RunElevated >---+-+------>+ * * +
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+ * NSIS.Quit() * + + * * +
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+ ************************ + + ***********||*********** +
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+ + + || +
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+ + + \/ +
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+ ***[Sections]*********** + + ***[Sections]*********** +
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+ * * + /--+-+-< UAC::Exec * +
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+ ************************ + | + ************************ +
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+ + | + +
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+ Win32.CreateProcess() <-+----/ + +
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+ + + +
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++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++
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</pre></code>
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<h2>Contents</h2>
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<ul>
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<li><a href="#exports">Plugin Functions</a>
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<li><a href="#lang">Language support</a>
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<li><a href="#knownissues">Known Issues</a>
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<li><a href="#glossary">Glossary</a>
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</ul>
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<a name="exports"><h2>Plugin Functions</h2></a><div class="CntSec"><p>
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Every function will try to emulate the basic NSIS instruction (of similar name) when UAC::RunElevated has not "succeeded" or running on a system that does not support elevation (Win9x/NT4)</p>
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<table class="piexport"><tr><th colspan=2>UAC::RunElevated</th></tr>
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<tr><td>Parameters:</td><td></td></tr>
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<tr><td>Returns:</td><td>
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<table class="ret">
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<tr><td><span class="nsisvar">$0</span></td><td>Win32 error code (0 on success, 1223 if user aborted elevation dialog, anything else should be treated as a fatal error)</td></tr>
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<tr><td><span class="nsisvar">$1</span></td><td><span class="code">If <span class="nsisvar">$0</span>==0</span>:
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<table class="ret">
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<tr><td>0</td><td>UAC is not supported by the OS</td></tr>
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<tr><td>1</td><td>Started a elevated child process, the current process should act like a wrapper (Call Quit without any further processing)</td></tr>
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<tr><td>2</td><td>The process is already running @ HighIL (Member of admin group)</td></tr>
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<tr><td>3</td><td>You should call RunElevated again (This can happen if a user without admin priv. is used in the runas dialog)</td></tr>
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</table>
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</td></tr>
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<tr><td><span class="nsisvar">$2</span></td><td><span class="code">If <span class="nsisvar">$0</span>==0 && <span class="nsisvar">$1</span>==1</span>: ExitCode of the elevated fork process (The NSIS errlvl is also set)</td></tr>
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<tr><td><span class="nsisvar">$3</span></td><td><span class="code">If <span class="nsisvar">$0</span>==0</span>: 1 if the user is a member of the admin group or 0 otherwise</td></tr>
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</table></td></tr>
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<tr><td>Description:</td><td>Allows non-admin/UAC.LUA users to re-spawn the installer as another user and UAC.Admin users to elevate.</td></tr>
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</table>
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<!--table class="piexport"><tr><th colspan=2>UAC::RunElevatedAndProcessMessages <i style="font-size:smaller;">(Experimental)</i></th></tr>
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<tr><td>Parameters:</td><td></td></tr>
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<tr><td>Returns:</td><td><i>See UAC::RunElevated</i></td></tr>
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<tr><td>Description:</td><td>Version of UAC::RunElevated that can be called from a page</td></tr>
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</table-->
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<table class="piexport"><tr><th colspan=2>UAC::Unload</th></tr>
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<tr><td>Parameters:</td><td></td></tr>
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<tr><td>Returns:</td><td></td></tr>
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<tr><td>Description:</td><td>Cleanup, you must call this function in .OnInstFailed, .onUserAbort and .OnInstSuccess</td></tr>
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</table>
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<table class="piexport"><tr>
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<th colspan=2>UAC::Exec</th></tr>
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<tr><td>Parameters:</td><td><INT:ShowWindow> <STR:App> <STR:Parameters> <STR:WorkingDir></td></tr>
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<tr><td>Returns:</td><td>
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<table class="ret">
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<tr><td><span class="nsisvar">$0</span></td><td>Win32 error code, 0 on success (ErrorFlag is also set on error)</td></tr>
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</table></td></tr>
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</table>
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<table class="piexport"><tr>
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<th colspan=2>UAC::ExecWait</th></tr>
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<tr><td>Parameters:</td><td><INT:ShowWindow> <STR:App> <STR:Parameters> <STR:WorkingDir></td></tr>
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<tr><td>Returns:</td><td>
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<table class="ret">
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<tr><td><span class="nsisvar">$0</span></td><td>Win32 error code, 0 on success (ErrorFlag is also set on error)</td></tr>
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<tr><td><span class="nsisvar">$1</span></td><td>Exitcode of new process</td></tr>
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</table></td></tr>
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</table>
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<table class="piexport"><tr>
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<th colspan=2>UAC::ShellExec</th></tr>
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<tr><td>Parameters:</td><td><STR:Verb> <INT:ShowWindow> <STR:App> <STR:Parameters> <STR:WorkingDir></td></tr>
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<tr><td>Returns:</td><td>
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<table class="ret">
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<tr><td><span class="nsisvar">$0</span></td><td>Win32 error code, 0 on success (ErrorFlag is also set on error)</td></tr>
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</table></td></tr>
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</table>
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<table class="piexport"><tr>
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<th colspan=2>UAC::ShellExecWait</th></tr>
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<tr><td>Parameters:</td><td><STR:Verb> <INT:ShowWindow> <STR:App> <STR:Parameters> <STR:WorkingDir></td></tr>
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<tr><td>Returns:</td><td>
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<table class="ret">
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<tr><td><span class="nsisvar">$0</span></td><td>Win32 error code, 0 on success (ErrorFlag is also set on error)</td></tr>
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<tr><td><span class="nsisvar">$1</span></td><td>Exitcode of new process</td></tr>
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</table></td></tr>
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</table>
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<table class="piexport"><tr><th colspan=2>UAC::IsAdmin</th></tr>
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<tr><td>Parameters:</td><td></td></tr>
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<tr><td>Returns:</td><td><span class="nsisvar">$0</span> (BOOL) result</td></tr>
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<tr><td>Description:</td><td>Check current thread/process token for a non-deny admin group SID entry</td></tr>
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</table>
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<table class="piexport"><tr><th colspan=2>UAC::ExecCodeSegment</th></tr>
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<tr><td>Parameters:</td><td><INT:NSISFunctionAddress></td></tr>
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<tr><td>Returns:</td><td>[None] (ErrorFlag is set on error)</td></tr>
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<tr><td>Description:</td><td>Calls NSIS function in LUA/outer instance (If you use instructions that alter the UI or the stack/variables in the code segment (StrCpy,Push/Pop/Exch,DetailPrint etc.) they will affect the hidden wrapper installer and not "your" installer instance)</td></tr>
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</table>
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<table class="piexport"><tr><th colspan=2>UAC::StackPush</th></tr>
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<tr><td>Parameters:</td><td><STR:String></td></tr>
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<tr><td>Returns:</td><td>[None] (ErrorFlag is set on error)</td></tr>
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<tr><td>Description:</td><td>Push to outer instance stack (For use with UAC::ExecCodeSegment)</td></tr>
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</table>
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<table class="piexport"><tr><th colspan=2>UAC::GetOuterHwnd</th></tr>
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<tr><td>Parameters:</td><td></td></tr>
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<tr><td>Returns:</td><td><span class="nsisvar">$0</span> HWNDPARENT of outer instance</td></tr>
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<tr><td>Description:</td><td>For use with ${UAC.RunElevatedAndProcessMessages}</td></tr>
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</table>
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<table class="piexport"><tr><th colspan=2>UAC::SupportsUAC</th></tr>
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<tr><td>Parameters:</td><td></td></tr>
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<tr><td>Returns:</td><td><span class="nsisvar">$0</span> !=0 if supported</td></tr>
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<tr><td>Description:</td><td>Check if the OS supports UAC (And the user has UAC turned on) <span class="importanttxt">This function only tests if UAC is active, will return 0 on NT5 even though runas is implemented on those platforms, will also return 0 on NT6+ if UAC is off. You should only call this function during testing, NOT to determine if you can call UAC::RunElevated</span></td></tr>
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</table>
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<table class="piexport"><tr><th colspan=2>UAC::GetElevationType</th></tr>
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<tr><td>Parameters:</td><td></td></tr>
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<tr><td>Returns:</td><td>
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<table class="ret">
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<tr><td><span class="nsisvar">$0</span></td><td><a href="#" OnClick="return NavGL('TOKEN_ELEVATION_TYPE Enumeration')">TOKEN_ELEVATION_TYPE</a>:
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<table class="ret">
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<tr><td>0</td><td>Unsupported/Failed (ErrorFlag is also set)</td></tr>
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<tr><td>1</td><td>TokenElevationTypeDefault: User is not using a split token (UAC disabled)</td></tr>
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<tr><td>2</td><td>TokenElevationTypeFull: UAC enabled, the (current) process is elevated</td></tr>
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<tr><td>3</td><td>TokenElevationTypeLimited: UAC enabled, the process is not elevated</td></tr>
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</table>
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</td></tr>
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</table></td></tr>
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</table>
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</div>
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<a name="lang"><h2>Language support</h2></a><div class="CntSec">
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<p>If the plugin is built with FEAT_CUSTOMRUNASDLG_TRANSLATE (Enabled by default),
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you can extract a file named <span class="str">UAC.LNG</span> to <span class="nsisvar">$pluginsdir</span>.
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It is a ini file with the following sections:
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</p><pre class="inifile">
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[MyRunAsCfg]
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<span class="inicomment">;Set to 1 to disable the radio button</span>
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DisableCurrUserOpt=
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<span class="inicomment">;Set to 1 to hide the radio button</span>
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HideCurrUserOpt=
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[MyRunAsStrings]
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DlgTitle=Hello There!
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HelpText=Just do your thing!
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<span class="inicomment">;Label for current user radio button, %s is replaced with result of GetUserNameEx(NameSamCompatible,...)</span>
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OptCurrUser=Self service (%s)
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OptOtherUser=Run as someone:
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UserName=Who:
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Pwd=PIN:
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OK=Okey!
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Cancel=No Way</pre>
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</div>
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<a name="knownissues"><h2>Known Issues</h2></a><div class="CntSec">
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<ul>
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<li>UACPI.KI#1: DetailPrint in outer process is ignored
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<li>UACPI.KI#2: Elevation can fail if the installer is located on a remote share that requires authentication
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</ul>
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</div>
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<a name="glossary"><h2>Glossary</h2></a><div class="CntSec">
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<ul>
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<li>AAM: Admin Approval Mode
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<li>IL: Integrity level (Part of the new MIC/WIC security levels added to NT6)
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<li>LUA: Limited/Least-privilege User Account
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<li>MIC: <a href="http://en.wikipedia.org/wiki/Mandatory_Integrity_Control">Mandatory Integrity Controls</a> (Now known as WIC)
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<li>UAC: User Account Control (Part of the UAP umbrella)
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<li>UAP: User Account Protection
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<li>WIC: <a href="http://www.securityfocus.com/infocus/1887">Windows Integrity Controls</a>
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<li>Win32 error code: Standard windows error codes, ERROR_???
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</ul>
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</div>
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</body></html>
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