System Writer is missing from the output of vssadmin list writers. The Application Event log is showing Event ID 513 source CAPI2. Had a hell of a time resolving this issue. Most of the sources point to a permissions issue. However the security log remains error free. The script below is combines a couple suggested fixes. One of the fixed is from the Microsoft KB article 2009272. Other items were found in various forums.

In Windows the Chrome browser uses your system wide proxy settings. This can be a problem if you have a need to run different browsers and/or applications. An example would be running a Secure Shell proxy to get through a content filtering firewall. To get around the Chrome system wide proxy settings, use a command line switch. Open or create a shortcut to Chrome/Chromium --proxy-server="socks5://127.0.0.1:8080" Replace 127.0.0.1 with your proxy address and 8080 with your proxy port.

I ran into an issue with some Citrix servers in the environment. Users were getting a protocol driver error. After poking around I noticed ICA was not listening on port 1494. It appears that this issue was caused by Microsoft patch MS12-024. Known issues with this security update After you install this security update on a Windows Server 2003 SP2-based terminal server, Remote Desktop Protocol (RDP) clients or Independent Computing Architecture (ICA) clients may be unable to connect to the terminal server.