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    <title>topic Re: COM Surrogate (dllhost.exe) spending significant CPU scanning flexhook64.dll in Dynamic Environment Manager</title>
    <link>https://communities.vmware.com/t5/Dynamic-Environment-Manager/COM-Surrogate-dllhost-exe-spending-significant-CPU-scanning/m-p/2242822#M4719</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi &lt;B&gt;b34ny&lt;/B&gt;,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Is this on Windows 10 v1703? There is a known issue with our DLL injection in certain &lt;SPAN style="font-family: 'courier new', courier;"&gt;dllhost.exe&lt;/SPAN&gt; processes, and you can use the DirectFlex blacklist feature to address this.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="color: #3d3d3d;"&gt;To configure this, create a &lt;/SPAN&gt;&lt;STRONG style="color: #3d3d3d; font-family: inherit; font-size: inherit; font-style: inherit;"&gt;Blacklist.xml&lt;/STRONG&gt;&lt;SPAN style="color: #3d3d3d;"&gt; file in the &lt;/SPAN&gt;&lt;STRONG style="color: #3d3d3d; font-family: inherit; font-size: inherit; font-style: inherit;"&gt;...\General\FlexRepository\DirectFlex&lt;/STRONG&gt;&lt;SPAN style="color: #3d3d3d;"&gt; folder (which does not exist by default), with the following content:&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;lt;?xml &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;version&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;1.0&lt;/STRONG&gt;' &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;encoding&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;utf-8&lt;/STRONG&gt;'?&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;lt;userEnvironmentSettings&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; &amp;lt;setting &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;type&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;blacklist&lt;/STRONG&gt;' &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;list&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;dllhost.exe&lt;/STRONG&gt;'/&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;lt;/userEnvironmentSettings&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="color: #303030;"&gt;&lt;SPAN style="font-family: proxima-nova, Arial, sans-serif;"&gt;If you already have this &lt;/SPAN&gt;&lt;STRONG style="font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;Blacklist.xml&lt;/STRONG&gt;&lt;SPAN style="font-family: proxima-nova, Arial, sans-serif;"&gt; file, just update its &lt;/SPAN&gt;&lt;/SPAN&gt;&lt;SPAN style="font-family: 'courier new', courier; color: #e23d39;"&gt;list&lt;/SPAN&gt;&lt;SPAN style="color: #666666; font-family: proxima-nova, Arial, sans-serif;"&gt; &lt;SPAN style="color: #303030;"&gt;attribute by adding&lt;/SPAN&gt; &lt;/SPAN&gt;&lt;STRONG style="font-family: 'courier new', courier; color: #3334ca;"&gt;|dllhost.exe&lt;/STRONG&gt;&lt;SPAN style="color: #666666; font-family: proxima-nova, Arial, sans-serif;"&gt; &lt;SPAN style="color: #303030;"&gt;at &lt;/SPAN&gt;the end of the current value (note the '&lt;STRONG style="font-family: 'courier new', courier; color: #3334ca;"&gt;|&lt;/STRONG&gt;&lt;/SPAN&gt;&lt;SPAN style="color: #666666; font-family: proxima-nova, Arial, sans-serif;"&gt;' (pipe character), which acts as a separator).&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="color: #303030;"&gt;The next release of UEM will address this issue.&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Thu, 07 Sep 2017 04:44:43 GMT</pubDate>
    <dc:creator>DEMdev</dc:creator>
    <dc:date>2017-09-07T04:44:43Z</dc:date>
    <item>
      <title>COM Surrogate (dllhost.exe) spending significant CPU scanning flexhook64.dll</title>
      <link>https://communities.vmware.com/t5/Dynamic-Environment-Manager/COM-Surrogate-dllhost-exe-spending-significant-CPU-scanning/m-p/2242821#M4718</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I've been doing a deep dive into Office 365 Activation in non-persistent VDI issues and while looking at processes I've noticed a COM Surrogate process consistently taking up ~33% CPU.&amp;nbsp; The process will finish, close and then re-open looking at the same file, repeat, repeat, repeat.&amp;nbsp; This happens on each machine in the pool, needless to say this is a major drain on CPU resources for the hosts.&amp;nbsp; Any thoughts?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper" image-alt="Capture.PNG"&gt;&lt;img src="https://communities.vmware.com/t5/image/serverpage/image-id/75066iFCD6B5AFE171339E/image-size/large?v=v2&amp;amp;px=999" role="button" title="Capture.PNG" alt="Capture.PNG" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 06 Sep 2017 18:58:00 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Dynamic-Environment-Manager/COM-Surrogate-dllhost-exe-spending-significant-CPU-scanning/m-p/2242821#M4718</guid>
      <dc:creator>b34ny</dc:creator>
      <dc:date>2017-09-06T18:58:00Z</dc:date>
    </item>
    <item>
      <title>Re: COM Surrogate (dllhost.exe) spending significant CPU scanning flexhook64.dll</title>
      <link>https://communities.vmware.com/t5/Dynamic-Environment-Manager/COM-Surrogate-dllhost-exe-spending-significant-CPU-scanning/m-p/2242822#M4719</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi &lt;B&gt;b34ny&lt;/B&gt;,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Is this on Windows 10 v1703? There is a known issue with our DLL injection in certain &lt;SPAN style="font-family: 'courier new', courier;"&gt;dllhost.exe&lt;/SPAN&gt; processes, and you can use the DirectFlex blacklist feature to address this.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="color: #3d3d3d;"&gt;To configure this, create a &lt;/SPAN&gt;&lt;STRONG style="color: #3d3d3d; font-family: inherit; font-size: inherit; font-style: inherit;"&gt;Blacklist.xml&lt;/STRONG&gt;&lt;SPAN style="color: #3d3d3d;"&gt; file in the &lt;/SPAN&gt;&lt;STRONG style="color: #3d3d3d; font-family: inherit; font-size: inherit; font-style: inherit;"&gt;...\General\FlexRepository\DirectFlex&lt;/STRONG&gt;&lt;SPAN style="color: #3d3d3d;"&gt; folder (which does not exist by default), with the following content:&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;lt;?xml &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;version&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;1.0&lt;/STRONG&gt;' &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;encoding&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;utf-8&lt;/STRONG&gt;'?&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;lt;userEnvironmentSettings&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; &amp;lt;setting &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;type&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;blacklist&lt;/STRONG&gt;' &lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: inherit; color: #e23d39;"&gt;list&lt;/SPAN&gt;='&lt;STRONG style="font-style: inherit; font-size: inherit; font-family: inherit;"&gt;dllhost.exe&lt;/STRONG&gt;'/&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; padding-left: 30px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="font-weight: inherit; font-style: inherit; font-size: inherit !important; font-family: 'courier new', courier; color: #3334ca;"&gt;&amp;lt;/userEnvironmentSettings&amp;gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="color: #303030;"&gt;&lt;SPAN style="font-family: proxima-nova, Arial, sans-serif;"&gt;If you already have this &lt;/SPAN&gt;&lt;STRONG style="font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;Blacklist.xml&lt;/STRONG&gt;&lt;SPAN style="font-family: proxima-nova, Arial, sans-serif;"&gt; file, just update its &lt;/SPAN&gt;&lt;/SPAN&gt;&lt;SPAN style="font-family: 'courier new', courier; color: #e23d39;"&gt;list&lt;/SPAN&gt;&lt;SPAN style="color: #666666; font-family: proxima-nova, Arial, sans-serif;"&gt; &lt;SPAN style="color: #303030;"&gt;attribute by adding&lt;/SPAN&gt; &lt;/SPAN&gt;&lt;STRONG style="font-family: 'courier new', courier; color: #3334ca;"&gt;|dllhost.exe&lt;/STRONG&gt;&lt;SPAN style="color: #666666; font-family: proxima-nova, Arial, sans-serif;"&gt; &lt;SPAN style="color: #303030;"&gt;at &lt;/SPAN&gt;the end of the current value (note the '&lt;STRONG style="font-family: 'courier new', courier; color: #3334ca;"&gt;|&lt;/STRONG&gt;&lt;/SPAN&gt;&lt;SPAN style="color: #666666; font-family: proxima-nova, Arial, sans-serif;"&gt;' (pipe character), which acts as a separator).&lt;/SPAN&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;/P&gt;&lt;P style="margin: 2px; font-family: proxima-nova, Arial, sans-serif; color: #666666;"&gt;&lt;SPAN style="color: #303030;"&gt;The next release of UEM will address this issue.&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 07 Sep 2017 04:44:43 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Dynamic-Environment-Manager/COM-Surrogate-dllhost-exe-spending-significant-CPU-scanning/m-p/2242822#M4719</guid>
      <dc:creator>DEMdev</dc:creator>
      <dc:date>2017-09-07T04:44:43Z</dc:date>
    </item>
    <item>
      <title>Re: COM Surrogate (dllhost.exe) spending significant CPU scanning flexhook64.dll</title>
      <link>https://communities.vmware.com/t5/Dynamic-Environment-Manager/COM-Surrogate-dllhost-exe-spending-significant-CPU-scanning/m-p/2242823#M4720</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Just wanted to let everyone know that &lt;A href="https://docs.vmware.com/en/VMware-User-Environment-Manager/9.2.1/rn/VMware-User-Environment-Manager-Release-Notes-921.html#1933884"&gt;this bug has been fixed in UEM 9.2.1&lt;/A&gt;, which was released a few days ago. If you already configured the Blacklist.xml workaround: that still works fine as well and does not conflict with the fix, so there's no urgent need to remove that workaround after you've upgraded (but I still suggest to do so at some point in time, just for "configuration hygiene" purposes &lt;img class="lia-deferred-image lia-image-emoji" src="https://communities.vmware.com/html/@3CBC42A1E7848F607FD419D398107BF9/emoticons/1f642.png" alt=":slightly_smiling_face:" title=":slightly_smiling_face:" /&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 20 Sep 2017 20:36:59 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Dynamic-Environment-Manager/COM-Surrogate-dllhost-exe-spending-significant-CPU-scanning/m-p/2242823#M4720</guid>
      <dc:creator>DEMdev</dc:creator>
      <dc:date>2017-09-20T20:36:59Z</dc:date>
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