(HELP) AutoSaveFileCmd: Open generated PDF automatically after saving

<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">Hello,</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">I am currently configuring PDF24 Creator 11.30.1 x64 for a silent/machine-wide installation.</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">The PDF24 printer is configured with:</p>

<code class="language-reg">[HKEY_LOCAL_MACHINE\SOFTWARE\PDF24\Services\PDF]
"Handler"="autoSave"
"AutoSaveDir"="C:\\Temp\\PDF24Test"
"AutoSaveFilename"="%Y-%m-%d %H-%M-%S $fileName"
"AutoSaveUseFileCmd"=dword:00000001

<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">Automatic saving works correctly.</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">I also verified that <code style="border: 1px solid #dddddd; margin: -3px 0px 0px; padding: 0px 5px; font-style: normal; font-variant: normal; font-size-adjust: none; font-language-override: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 15px; line-height: normal; font-family: Inconsolata, Consolas, Monaco, 'Lucida Console', monospace; display: inline-block; background-color: #f9f9f9; max-width: 95%; vertical-align: middle; overflow-x: auto;">AutoSaveFileCmd is executed. For example:</p>

<code class="language-reg">"AutoSaveFileCmd"="cmd.exe /c echo TEST >> C:\\Temp\\pdf24-command.txt"

<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">creates the file successfully.</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">I also verified that <code style="border: 1px solid #dddddd; margin: -3px 0px 0px; padding: 0px 5px; font-style: normal; font-variant: normal; font-size-adjust: none; font-language-override: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 15px; line-height: normal; font-family: Inconsolata, Consolas, Monaco, 'Lucida Console', monospace; display: inline-block; background-color: #f9f9f9; max-width: 95%; vertical-align: middle; overflow-x: auto;">${file} is substituted correctly. It contains the complete generated PDF path, for example:</p>

<code class="language-text">C:\Temp\PDF24Test\2026-09-14 12-49-10 -Lorem ipsum dolor sit amet, consete - Notepad.pdf

<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">My problem is that I want to automatically open the generated PDF with the user's default PDF application after saving.</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">I have tried:</p>

<code class="language-reg">"AutoSaveFileCmd"="\"C:\\Program Files\\Adobe\\Acrobat DC\\Acrobat\\Acrobat.exe\" \"${file}\""

<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">and even:</p>

<code class="language-reg">"AutoSaveFileCmd"="\"C:\\Program Files\\Adobe\\Acrobat DC\\Acrobat\\Acrobat.exe\""

<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">but Acrobat does not open.</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">I also tried:</p>

<code class="language-reg">"AutoSaveFileCmd"="cmd.exe /c start \"\" \"${file}\""

<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">but nothing happens.</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">Interestingly, simple commands such as <code style="border: 1px solid #dddddd; margin: -3px 0px 0px; padding: 0px 5px; font-style: normal; font-variant: normal; font-size-adjust: none; font-language-override: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 15px; line-height: normal; font-family: Inconsolata, Consolas, Monaco, 'Lucida Console', monospace; display: inline-block; background-color: #f9f9f9; max-width: 95%; vertical-align: middle; overflow-x: auto;">echo work, so <code style="border: 1px solid #dddddd; margin: -3px 0px 0px; padding: 0px 5px; font-style: normal; font-variant: normal; font-size-adjust: none; font-language-override: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 15px; line-height: normal; font-family: Inconsolata, Consolas, Monaco, 'Lucida Console', monospace; display: inline-block; background-color: #f9f9f9; max-width: 95%; vertical-align: middle; overflow-x: auto;">AutoSaveFileCmd itself is definitely executed.</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">Is there a recommended way in PDF24 Creator 11.30.1 to launch a GUI application / the user's default PDF viewer from <code style="border: 1px solid #dddddd; margin: -3px 0px 0px; padding: 0px 5px; font-style: normal; font-variant: normal; font-size-adjust: none; font-language-override: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 15px; line-height: normal; font-family: Inconsolata, Consolas, Monaco, 'Lucida Console', monospace; display: inline-block; background-color: #f9f9f9; max-width: 95%; vertical-align: middle; overflow-x: auto;">AutoSaveFileCmd after an auto-save?</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">Would using a separate PDF24 printer/service make a difference, or is there another command/syntax specifically intended for opening the generated PDF?</p>
<p style="border: 0px; margin: 0px 0px 1.5em; padding: 0px; color: #000000; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; background-color: #fbfbfb;">Thank you!</p>