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Timtocci 25-Jun-17 0:3725-Jun-17 0:37I basically compiled your example using VS2017CE with the nuget package after too many futile attempts at translating C# to VB. So I'm not the C# wizkid but it is your code from the download.The 'Test Server' menu item pins my CPUs and refuses to respond.

After awhile a Test Shell does show, however. When I click on an image (of any type not just.ico) I get an exception:. Exception Text.System.InvalidOperationException: Failed to enumerate children. Hi,Well the exception is saying that a class with the ID: 0D0766ED-A4E3-4126-95C5-6B908CD31518 is not registered. Is this the CSLID of your server? If you are not sure you can decorate your server with your your own clsid attribute manually to specify what you want the clsid to be. Then you could check if it is that clsid that is failing.Paid support is not an option simply because I don't have the time to be able to offer it.

Next step would be to attach a debugger to the server manager and then try again - you should get a more detailed stack trace. So run the server manager, load your server, attach a debugger, set the debugger to break on all exceptions and go for it. Let me know if it works! Shawn Rubie 29-Sep-Sep-14 11:13I encountered a few problems getting your example IconPreviewHandler to work, but was able to work around all of them.1. Having DisableLowILProcessIsolation set doesn't work, it just displays 'This file can't be viewed because of an error in the Icon Preview Handler'. It seems to not even get into the SharpPreviewHandler constructor (I added some EventLog messages in the constructor, they don't show).2. Removing DisableLowILProcessIsolation allowed the constructor to run, but calls to EventLog caused other exceptions: InvalidOperationException: Cannot open log for source 'SharpShell'.

You may not have write access. (InnerException: Win32Exception: Access is denied) I put try/catches around the EventLog calls in the logging class, and displayed the message in a MessageBox instead, for debugging. I'll commented them out once i'm sure everything is working, but it means I have no runtime logging. I wasn't sure how to provide permissions to allow use of SharpShell EventLogs during low integrity level processes.3. I got a InvalidOperationException: Cross-thread operation not valid.

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From the OnPreviewHostThread method. This only happened once, while debugging. I haven't seen it otherwise, maybe it was a fluke?4. The first time SetWindow is called, it always provides RECT dimensions of 0 x 0. Sometimes in that first time, SetRect isn't called afterwards with proper dimensions, which means that nothing gets displayed. Clicking off the icon and back on will cause SetWindow to be called with the proper dimensions, allowing the preview to be seen.anyway, I seem to have it stabilized on my win7 64-bit system now, and it's fairly reliable now.

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Thanks again for this great library.Shawn.