{"version":"1.0","provider_name":"Visual Studio Setup","provider_url":"https:\/\/devblogs.microsoft.com\/setup","author_name":"Heath Stewart","author_url":"https:\/\/devblogs.microsoft.com\/setup\/author\/heaths\/","title":"The Dangers of ARPSYSTEMCOMPONENT","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"AaqH2UzB1v\"><a href=\"https:\/\/devblogs.microsoft.com\/setup\/the-dangers-of-arpsystemcomponent\/\">The Dangers of ARPSYSTEMCOMPONENT<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/devblogs.microsoft.com\/setup\/the-dangers-of-arpsystemcomponent\/embed\/#?secret=AaqH2UzB1v\" width=\"600\" height=\"338\" title=\"&#8220;The Dangers of ARPSYSTEMCOMPONENT&#8221; &#8212; Visual Studio Setup\" data-secret=\"AaqH2UzB1v\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/devblogs.microsoft.com\/setup\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/devblogs.microsoft.com\/setup\/wp-content\/uploads\/sites\/13\/2018\/08\/vsfeaturemed.png","thumbnail_width":559,"thumbnail_height":350,"description":"Back in March I wrote about the dangers of using the RunOnce and Run registry keys. This is another post to help you avoid some other pitfalls. The ARPSYSTEMCOMPONENT property in Windows Installer does not actually do anything directly to your installation &mdash; Windows Installer doesn&#8217;t even check for it. What does happen, however, is [&hellip;]"}