Whenever I try to open any SNES ROM in BizHawk 1.11.4, I get the following exception on Windows 8.1. I've already run the prereq installer.
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SNES load error
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A core accepted the rom, but threw an exception while loading it:
System.UnauthorizedAccessException: Access to the path is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalMove(String sourceFileName, String destFileName, Boolean checkHost)
at BizHawk.Common.InstanceDll..ctor(String dllPath)
at BizHawk.Emulation.Cores.Nintendo.SNES.LibsnesApi..ctor(String dllPath)
at BizHawk.Emulation.Cores.Nintendo.SNES.LibsnesCore..ctor(GameInfo game, Byte[] romData, Boolean deterministicEmulation, Byte[] xmlData, CoreComm comm, Object Settings, Object SyncSettings)
at BizHawk.Client.Common.RomLoader.LoadRom(String path, CoreComm nextComm, Boolean forceAccurateCore, Int32 recursiveCount)
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OK
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I have zero familiarity with BizHawk but this sounds like the program may be installed in the wrong location, or that you have some kind of permissions issue with where your storing your files. It's evidently trying to move a file into a location that it doesn't have permissions to move it to.
Pyrel - an open-source rewrite of the Angband roguelike game in Python.
try turning off your security software. bizhawk tries to move a dll immediately after copying it. virus scanners will interfere with stuff like this. Consider running process monitor to watch which files get accessed (look for filenames with libsneshawk in their names) and figure out why your system is broken and not allowing access to a directory bizhawk should have access to.