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What does .symopt show in WinDbg and VisualDDK? If you set symbol options in VisualDDK equal to WinDbg ones, will the bug disappear? If you open Disassembly window in Visual Studio, and type IoCreateFile (should work even without nt! prefix there), does it locate the function correctly?
Well, it’s a Microsoft policy in Vista x64 to prevent loading of unsigned drivers. As signing drivers by Microsoft requires quite a budget, it is not an option for free software, like WinCDEmu. A partial workaround is decsribed here: http://www.elandigitalsystems.com/support/code39faq.php.
VMMON is not needed while using VisualDDK, as VisualDDK takes its role using functions from KDCLIENT.DLL.
You can start VisualDDK debugging session even before the target OS is booted. In that case, VisualDDK will connect to VM and will be waiting for the OS to load. Basically, an open VIsualDDK session is completely equivalent to an open WinDbg session, from KDVMWare’s point of view.
