Windows Installer and Extensibility.dll
Windows Installer is one of my favorite problem childs - of course, when it has mysteriuos problems. I found a problem when installing Outlook add-in on machine that has no extensibility features installed on it. Something was missing and installer gave me the famous "Unable to get installer types" error. After pointless waste of time tracing installer and checking its logs I checked out what's going on in file system.
NB! This blog is moved to gunnarpeipman.com
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