Regopenkeyex failed with error file not found 2

The HKEY_ LOCAL_ MACHINE pseudo key handle points to the key named \ Registry\ Machine which serves as one of mounting points for registry hives. I doubt you can open this key, or enumerate its subkeys, via standard Windows API, such. My apologies for my misunderstandings. Actually I had to use KEY_ WOW64_ 32KEY flag instead of KEY_ WOW64_ 64KEY in RegOpenKeyExW ( HKEY_ LOCAL_ MACHINE, strTmp. c_ str( ), 0, KEY_ READ | KEY_ WOW64_ 32' s possible that the key does not exist on the remote machine, or you don' t have access rights. Check the documentation, and the error code it returns. function to display a more meaningfull description of the error. Two things to check for error 2 / " file not found" : Make sure it' s not a " value" within a key instead of an actual key. If you create a folder like HKCU > Software > CompanyName and then store a value like option = " foo" with. On a Windows 64- bit system the Registry is actually divided into two parts. run your 32- bit application and call RegOpenKeyEx it' s actually working against the Wow6432Node\ folder, and not the regular \ SOFTWARE node. run your 32- bit application and call RegOpenKeyEx it' s actually working against the Wow6432Node\ folder, and not the regular \ SOFTWARE cause of these features you sometimes end up in a different place in the registry and it will not match up with what you see in Regedit. In cases like these the best thing to do is to use Process Monitor so you can see which key you are really. Likely, the code is running as a different user or its current user isn' t in synch with the cached registry key for the process.

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    Regopenkeyex failed with

    See RegOpenCurrentUser. If the function fails, the return value is a system error code. In my tests, RegGetValue returns 2 ( i. ERROR_ FILE_ NOT_ FOUND ) in case of values not found. However, I cannot find any official MSDN page documenting that. ( Moreover, since when is a registry value a file? I think these features could even be emulated with a combination of RegOpenKeyEx and RegQueryValueEx.