https://www.dotnetzone.gr:443/cs/blogs/birbilis/archive/2011/12/05/fix-embed-office-amp-acrobat-active-documents-in-ie-webbrowser-control.aspxSince the LvS desktop application (from Learning Via Subtitling project) uses Internet Explorer to embed Microsoft Office Word, Excel, PowerPoint and Adobe Acrobat PDF documents (among others), I added some useful info to the LvS download page on howelCommunityServer 2.1 SP3 (Build: 20423.1)