blocks|key|2796119|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2796120|如果我没理解错的话，你想从微星格式迁移到NSIS格式吗？这里有一篇关于这方面的文章：https://nsis.sourceforge.io/Uninstalling_a_previous_MSI。|blockquote|offset|length|2796121|2796122|2796123|2796124|但是，我建议您找到微系统接口的产品代码，并使用产品代码和您自己的卸载字符串(而不是上面文档中显示的从注册表获得的字符串)调用msiexec.exe。通过这种方式，您可以添加一些构造来防止自发地重新启动，并强制执行适当的静默运行的。下面将介绍这种方法。|style|BOLD|CODE|2796125|2796126|卸载MSI：您可以通过以下方式运行卸载命令来卸载以前的MSI版本：Uninstalling+an+MSI+file+from+the+command+line+without+using+msiexec。|2796127|查找产品代码：可以通过如下方式查找微星的产品GUID：How+can+I+find+the+product+GUID+of+an+installed+MSI+setup?|2796128|命令行：结合上面第一个链接中的方法3.5和使用第二个链接中的信息找到的产品代码，您可以使用如下命令行从您的NSIS调用：|2796129|msiexec.exe+/x+{11111111-1111-1111-1111-11111111111X}+/QN+/L*V+"C:\msilog.log"+REBOOT=ReallySuppress|code-block|syntax|javascript|2796130|快速参数说明|2796131|/X+=+run+uninstall+sequence
{11111111-1111-1111-1111-11111111111X}+=+product+guid+of+app+to+uninstall
/QN+=+run+completely+silently
/L*V+"C:\msilog.log"=+verbose+logging+at+path+specified
REBOOT=ReallySuppress+=+prevent+unexpected+reboot+of+computer|2796132|ExecWait：NSIS需要自己特有的命令格式：Running+MSIEXEC+in+a+NSIS+script+with+installer+switches。我还没有测试过这一点，但我有一个建议：|2796133|StrCpy+$R0+"{11111111-1111-1111-1111-11111111111X}";++the+MSI's+ProductID+of+my+package
ExecWait+'"msiexec.exe"+/x+$R0+/QN+REBOOT=ReallySuppress'|2796134|查看此处对命令行进行微调：https://nsis.sourceforge.io/Uninstalling_a_previous_MSI。|2796135|2796136|链接|2796137|2796138|https://nsis.sourceforge.io/Uninstalling_a_previous_MSI|unordered-list-item|2796139|https://nsis.sourceforge.io/Auto-uninstall_old_before_installing_new|2796140|How+do+I+require+user+to+uninstall+previous+version+with+NSIS|2796141|https://nsis.sourceforge.io/Removing_MSI_packages_with_MSI_related_functions|2796142|2796143|entityMap|0|LINK|mutability|MUTABLE|url|1|https://stackoverflow.com/questions/450027/uninstalling-an-msi-file-from-the-command-line-without-using-msiexec/1055933#1055933|2|https://stackoverflow.com/questions/29937568/how-can-i-find-the-product-guid-of-an-installed-msi-setup/29937569#29937569|3|https://stackoverflow.com/questions/51445588/running-msiexec-in-a-nsis-script-with-installer-switches|4|5|6|7|https://stackoverflow.com/questions/719631/how-do-i-require-user-to-uninstall-previous-version-with-nsis|8^0|0|16|1J|0|0|0|0|0|F|4|1Q|B|2L|7|36|B|1Q|B|0|0|0|2U|X|1W|1|0|0|2D|R|1M|2|0|0|1O|0|0|0|6|0|0|0|2T|P|1K|3|0|0|0|1X|D|1J|4|0|0|0|2|0|0|0|1J|0|1J|5|0|0|1W|0|1W|6|0|0|1P|0|1P|7|0|0|24|0|24|8|0|0^^$0|@$1|2|3|-4|4|5|6|26|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|27|7|@]|8|@$D|28|E|29|1|2A]]|9|$]]|$1|F|3|-4|4|5|6|2B|7|@]|8|@]|9|$]]|$1|G|3|-4|4|5|6|2C|7|@]|8|@]|9|$]]|$1|H|3|-4|4|5|6|2D|7|@]|8|@]|9|$]]|$1|I|3|J|4|5|6|2E|7|@$D|2F|E|2G|K|L]|$D|2H|E|2I|K|L]|$D|2J|E|2K|K|L]|$D|2L|E|2M|K|L]|$D|2N|E|2O|K|M]]|8|@]|9|$]]|$1|N|3|-4|4|5|6|2P|7|@]|8|@]|9|$]]|$1|O|3|P|4|5|6|2Q|7|@$D|2R|E|2S|K|L]]|8|@$D|2T|E|2U|1|2V]]|9|$]]|$1|Q|3|R|4|5|6|2W|7|@$D|2X|E|2Y|K|L]]|8|@$D|2Z|E|30|1|31]]|9|$]]|$1|S|3|T|4|5|6|32|7|@$D|33|E|34|K|L]]|8|@]|9|$]]|$1|U|3|V|4|W|6|35|7|@]|8|@]|9|$X|Y]]|$1|Z|3|10|4|5|6|36|7|@$D|37|E|38|K|L]]|8|@]|9|$]]|$1|11|3|12|4|W|6|39|7|@]|8|@]|9|$X|Y]]|$1|13|3|14|4|5|6|3A|7|@$D|3B|E|3C|K|L]]|8|@$D|3D|E|3E|1|3F]]|9|$]]|$1|15|3|16|4|W|6|3G|7|@]|8|@]|9|$X|Y]]|$1|17|3|18|4|5|6|3H|7|@$D|3I|E|3J|K|L]]|8|@$D|3K|E|3L|1|3M]]|9|$]]|$1|19|3|-4|4|5|6|3N|7|@]|8|@]|9|$]]|$1|1A|3|1B|4|5|6|3O|7|@$D|3P|E|3Q|K|L]]|8|@]|9|$]]|$1|1C|3|-4|4|5|6|3R|7|@]|8|@]|9|$]]|$1|1D|3|1E|4|1F|6|3S|7|@$D|3T|E|3U|K|L]]|8|@$D|3V|E|3W|1|3X]]|9|$]]|$1|1G|3|1H|4|1F|6|3Y|7|@$D|3Z|E|40|K|L]]|8|@$D|41|E|42|1|43]]|9|$]]|$1|1I|3|1J|4|1F|6|44|7|@$D|45|E|46|K|L]]|8|@$D|47|E|48|1|49]]|9|$]]|$1|1K|3|1L|4|1F|6|4A|7|@$D|4B|E|4C|K|L]]|8|@$D|4D|E|4E|1|4F]]|9|$]]|$1|1M|3|-4|4|5|6|4G|7|@]|8|@]|9|$]]|$1|1N|3|-4|4|5|6|4H|7|@]|8|@]|9|$]]]|1O|$1P|$4|1Q|1R|1S|9|$1T|1E]]|1U|$4|1Q|1R|1S|9|$1T|1V]]|1W|$4|1Q|1R|1S|9|$1T|1X]]|1Y|$4|1Q|1R|1S|9|$1T|1Z]]|20|$4|1Q|1R|1S|9|$1T|1E]]|21|$4|1Q|1R|1S|9|$1T|1E]]|22|$4|1Q|1R|1S|9|$1T|1H]]|23|$4|1Q|1R|1S|9|$1T|24]]|25|$4|1Q|1R|1S|9|$1T|1L]]]]

<blockquote>
 If I understand correctly you want to migrate from MSI to NSIS format?
 There is an article on this here:
 <a href="https://nsis.sourceforge.io/Uninstalling_a_previous_MSI" rel="nofollow noreferrer">https://nsis.sourceforge.io/Uninstalling_a_previous_MSI</a>.
</blockquote>

<hr>

I would suggest, however, that you find the product code for the MSI and invoke <code>msiexec.exe</code> with the product code and your own uninstall string (not the one gotten from the registry as shown in the above documentation). This way you can add a few constructs to prevent spontaneous reboot and to enforce proper silent running. This approach is described below.

<hr>

Uninstall MSI: You can uninstall the previous MSI version by running an uninstall command in any number of ways: <a href="https://stackoverflow.com/questions/450027/uninstalling-an-msi-file-from-the-command-line-without-using-msiexec/1055933#1055933">Uninstalling an MSI file from the command line without using msiexec</a>.

Find Product Code: You can find the product GUID of the MSI as follows: <a href="https://stackoverflow.com/questions/29937568/how-can-i-find-the-product-guid-of-an-installed-msi-setup/29937569#29937569">How can I find the product GUID of an installed MSI setup?</a>

Command Line: Combining approach 3.5 from first link above and the product code found using the information in the second link, you can use a command line like this to invoke from your NSIS installer:

<pre><code>msiexec.exe /x {11111111-1111-1111-1111-11111111111X} /QN /L*V "C:\msilog.log" REBOOT=ReallySuppress
</code></pre>

Quick Parameter Explanation:

<pre><code>/X = run uninstall sequence
{11111111-1111-1111-1111-11111111111X} = product guid of app to uninstall
/QN = run completely silently
/L*V "C:\msilog.log"= verbose logging at path specified
REBOOT=ReallySuppress = prevent unexpected reboot of computer
</code></pre>

ExecWait: NSIS requires its own peculiar command format: <a href="https://stackoverflow.com/questions/51445588/running-msiexec-in-a-nsis-script-with-installer-switches">Running MSIEXEC in a NSIS script with installer switches</a>. Haven't tested this yet, but a suggestion:

<pre><code>StrCpy $R0 "{11111111-1111-1111-1111-11111111111X}"; the MSI's ProductID of my package
ExecWait '"msiexec.exe" /x $R0 /QN REBOOT=ReallySuppress'
</code></pre>

Check here for fine-tuning the command line: <a href="https://nsis.sourceforge.io/Uninstalling_a_previous_MSI" rel="nofollow noreferrer">https://nsis.sourceforge.io/Uninstalling_a_previous_MSI</a>.

<hr>

Links:

<ul>
<li><a href="https://nsis.sourceforge.io/Uninstalling_a_previous_MSI" rel="nofollow noreferrer">https://nsis.sourceforge.io/Uninstalling_a_previous_MSI</a></li>
<li><a href="https://nsis.sourceforge.io/Auto-uninstall_old_before_installing_new" rel="nofollow noreferrer">https://nsis.sourceforge.io/Auto-uninstall_old_before_installing_new</a></li>
<li><a href="https://stackoverflow.com/questions/719631/how-do-i-require-user-to-uninstall-previous-version-with-nsis">How do I require user to uninstall previous version with NSIS</a></li>
<li><a href="https://nsis.sourceforge.io/Removing_MSI_packages_with_MSI_related_functions" rel="nofollow noreferrer">https://nsis.sourceforge.io/Removing_MSI_packages_with_MSI_related_functions</a></li>
</ul>

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Any wix/msi gurus know the best way I could uninstall the old msi and run the new installer? The solutions I have found involve searching through the Windows Registry to find the msi UUID then using msiexec.

Is it possible to just create a new version of the .msi that cleans up everything?

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