On Fri, Apr 7, 2017 at 3:51 PM, Akos Marton
*me.exe: RegOpenKey: invalid argument (The system cannot find the file specified.)*
That would be fine, however the key does exists. When same code, same system, but the .exe built to be x64 it runs like a charm.
My guess is that the FFI call has an incorrect type somewhere and therefore passes garbage. Another thing which convoluted in the issue...
The function, *getSystemInfo :: IO SYSTEM_INFO, *can read out the underlying architecture. When compiled on x86 and run on x64 it would tell me: "I am running on x86". That's failure.
You can blame Windows for that one: if you run an x86 binary on x86_64, it launches the WoW subsystem emulating an x86 processor, so you will get the emulated processor reported back. There may be a different API to get the actual host --- but given that WoW exists to minimize incompatibilities for x86 software, it is likely well hidden if it exists at all. -- brandon s allbery kf8nh sine nomine associates allbery.b@gmail.com ballbery@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net