AnyConnect Windows Service won't start

[lreedbobmills]

Installed AnyConnect Client v3.1.3103.0 on Windows 7 64-bit.

"Cisco AnyConnect Secure Mobility Agent" window service will not start.  Error 1067: The process terminated unexpectedly.

Tried uninstalling/installing. This all worked a couple of weeks ago, then it stopped.

Event Viewer show.

Faulting application name: vpnagent.exe, version: 3.1.3103.0, time stamp: 0x5151c1c1

Faulting module name: Dbghelp.dll, version: 6.1.7601.17514, time stamp: 0x4ce7b7bc

Exception code: 0xc0000005

Fault offset: 0x0004b4cf

Faulting process id: 0x9d0

Faulting application start time: 0x01ce96e98013d6a6

Faulting application path: C:\Program Files (x86)\Cisco\Cisco AnyConnect Secure Mobility Client\vpnagent.exe

Faulting module path: C:\Windows\system32\Dbghelp.dll

Report Id: be5b53e3-02dc-11e3-8202-00262d24a1f7

Any ideas on what could be causing this?

[jesse_slicer]

That version of Dbghelp.dll appears to be the culprit as per https://stackoverflow.com/questions/22970975/using-dbghelp-dll-on-windows-8-1-update-1-crashes-application (ignore that they're running Win8.1). You can download the latest version of "Debugging Tools for Windows" as part of the SDK from http://msdn.microsoft.com/en-us/windows/desktop/bg162891.aspx .