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I am trying to start my help from my C# wpf application and so I use :

System.Windows.Forms.Help.ShowHelp(null, @"//UNCPATH/Help.chm", System.Windows.Forms.HelpNavigator.Topic, "/GOOD_TOPIC.htm");

And this starts the hh.exe with the help but the right panel is completely white like if it couldn't render it.

I also tried the 

Process.Start("hh.exe", "//UNCPATH/Help.chm")

and this gives the same result.

But When I use a local path Help.ShowHelp works and when I use the Windows run window with:hh.exe //UNCPATH/Help.chm it works.

I don't think UNC path is the problem here because even with a mapped drive I have the same result. My best guest is thew network drive is the problem here but then again I don't have the problem when I use something out of my code.

Could this be a 32/64 bit problem (my app is compiled as 32-bit on a 64-bit Windows 7 OS)

EDIT :

After some more research when compiled in x64 it works on my pc but not when compiled in x86

M. Adeel Khalid
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user3704628
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    http://stackoverflow.com/q/39859155/62576 – Ken White Feb 24 '17 at 02:46
  • I get that, first problem is that I am not admin on my PC and can't modify does register, and what is really strange to me is that I can run it manually but not from my code, why is that? – user3704628 Feb 24 '17 at 02:59
  • Using a mapped drive should solve the problem no? – user3704628 Feb 24 '17 at 03:01
  • Did you review the links in the answer to that question? There are many of them; one of them should answer your question. But mapping a drive letter to a shared drive does not magically make it no longer a shared drive. – Ken White Feb 24 '17 at 03:04

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