Signatures not Valid

Need help urgent please.
Currently unable to use Exchange Panel at all. When launching it, it says it needs to update. I allow it to download the update then attempt to install (+- 15 Mb) but it just hangs. It says it needs to start the Extension manager, but it just hangs there doing nothing.
When launching the extension manager it says the signature is not valid. Even though it is a fresh install (no changes made) and then Adobe Exchange Panel was downloaded from the site not even 5 minutes ago.
System is a Clean Windows 7 x64. Installed is Adobe Dreamweaver, Photoshop Extension manager, Air and Exchange Panel. No AV and firewall disabled.
Any help would be greatly appreciated.
Also, this is not an isolated problem. happening on All machines tested on. The applications were packaged through the Creative Cloud Suite today, so i assume it would be up to date?
Versions :     Air                           3.8.0.1430
                    Dreamweaver CC    6.0
                    Exchange Panel      1.0
                    Photoshop CC         14.0
Windows 7 SP1 x64

Hi there, just an update, i have found a way to resolve the issue.
Issue was trying to install the CC version of Exchange Panel. When trying to install via the command line, it would give an error that the cert was invalid.
By chance i tried to install via the Extension manager as with CS5, but this failed. I then saw there was a ExManCmd.exe
Installing the ZXP extension for Exchange Panel has now resolved the issues faced. Exchange Panel now added to all applicable apps.
Command run from command line
C:\Program Files (x86)\Adobe\Adobe Extension Manager CC>ExManCmd.exe /install C:\AdobeExchange.zxp

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As described in ETSI TS 102778 (PAdES), the EU standard for PDF Digital
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at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
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Any ideas?
I've managed to get it to this stage. Originally I didn't have encryption keys or a listening port(which I fixed).

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Deleting DPM reports:
1. Open report manager URL in IE
2. Click show details on right hand side
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Regards, Trinadh [MSFT] This posting is provided AS IS with no warranties, and confers no rights. If you found the reply helpful, please MARK IT AS ANSWER. Looking for source of information for DPM? http://blogs.technet.com/b/dpm/ http://technet.microsoft.com/en-in/library/hh758173.aspx

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