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And should I delete the values that don't have .dll, .ocx, or.ax extensions?
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And should I delete the values that don't have .dll, .ocx, or.ax extensions?

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But why is the Key called &quot;SharedDlls&quot; if half of them aren't even close to being DLLs? What is the key used for?
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But why is the Key called "SharedDlls" if half of them aren't even close to being DLLs? What is the key used for?

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I was just wondering what, exactly, are the values in HKEY_LOCAL_MACHINE\SOFTWAR<wbr />E\Microsof<wbr />t\Windows\<wbr />CurrentVer<wbr />sion\Share<wbr />dDlls for? Because some of the values have weird extensions I have a bunch of values with a .exe extension and quite a few with .chm, .cfm, .htm, .html, .js, .ini, .xml, and .txt extensions. I thought they're supposed to be Shared &quot;DLLs&quot;. 
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I was just wondering what, exactly, are the values in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls for? Because some of the values have weird extensions I have a bunch of values with a .exe extension and quite a few with .chm, .cfm, .htm, .html, .js, .ini, .xml, and .txt extensions. I thought they're supposed to be Shared "DLLs". 

Strange Values in SharedDlls Key in Registry

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.