Give windows a good hint about where to find the program to run

[jsoref]

Test command:
ssh -J localhost localhost -vvv

The current openssh-portable code results in the following API calls (trying to find a "program"):

2:41:28.1645579 PM	ssh.exe	2836	CreateFile	C:\Windows\System32\OpenSSH\ssh -W '[localhost]:22' localhost	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a
2:41:28.1647720 PM	ssh.exe	2836	CreateFile	C:\Windows\System32\OpenSSH\ssh -W '[localhost]:22' localhost.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

Your current proposal results in the following API calls (trying to find a "program"):

4:34:11.0114226 PM	ssh.exe	3280	CreateFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0116687 PM	ssh.exe	3280	CreateFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0118551 PM	ssh.exe	3280	CreateFile	C:\Windows\System32\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0120783 PM	ssh.exe	3280	CreateFile	C:\Windows\System\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0122631 PM	ssh.exe	3280	CreateFile	C:\Windows\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0123699 PM	ssh.exe	3280	CreateFile	C:\Program Files\git\cmd\ssh -vvv -W.exe	PATH NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0125956 PM	ssh.exe	3280	CreateFile	C:\Windows\System32\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0127745 PM	ssh.exe	3280	CreateFile	C:\Windows\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0129540 PM	ssh.exe	3280	CreateFile	C:\Windows\System32\wbem\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0131813 PM	ssh.exe	3280	CreateFile	C:\Windows\System32\WindowsPowerShell\v1.0\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0133618 PM	ssh.exe	3280	CreateFile	C:\Windows\System32\OpenSSH\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0136626 PM	ssh.exe	3280	CreateFile	C:\ProgramData\chocolatey\bin\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0138542 PM	ssh.exe	3280	CreateFile	C:\Program Files\Puppet Labs\Puppet\bin\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0140380 PM	ssh.exe	3280	CreateFile	C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0142676 PM	ssh.exe	3280	CreateFile	C:\Users\IEUser\AppData\Local\Microsoft\WindowsApps\ssh -vvv -W.exe	NAME NOT FOUND	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a

4:34:11.0143515 PM	ssh.exe	3280	Thread Create		SUCCESS	Thread ID: 3088

4:34:11.0169724 PM	ssh.exe	3280	Thread Exit		SUCCESS	Thread ID: 3088, User Time: 0.0000000, Kernel Time: 0.0000000

4:34:11.0172968 PM	ssh.exe	3280	CreateFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened

It eventually finds C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe

Note: the path change from C:\Windows\System32\OpenSSH\ssh to C:\Users\IEUser\openssh\bin\x64\Debug\ssh isn't important, the ssh binary lives in a new place.

This is still pretty stupid.

We can do better, here's the entire log with this change:

4:44:23.7184239 PM	ssh.exe	3784	CloseFile	C:\Windows\System32\wshbth.dll	SUCCESS	
4:44:23.7194645 PM	ssh.exe	3784	Thread Create		SUCCESS	Thread ID: 180
4:44:23.7272320 PM	ssh.exe	3784	Thread Exit		SUCCESS	Thread ID: 180, User Time: 0.0000000, Kernel Time: 0.0000000
4:44:23.7314823 PM	ssh.exe	3784	Thread Create		SUCCESS	Thread ID: 5744
4:44:23.7329023 PM	ssh.exe	3784	Thread Exit		SUCCESS	Thread ID: 5744, User Time: 0.0000000, Kernel Time: 0.0000000
4:44:23.7330393 PM	ssh.exe	3784	Thread Create		SUCCESS	Thread ID: 4540
4:44:23.7337068 PM	ssh.exe	3784	Thread Exit		SUCCESS	Thread ID: 4540, User Time: 0.0000000, Kernel Time: 0.0000000
4:44:23.7340065 PM	ssh.exe	3784	CreateFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
4:44:23.7340345 PM	ssh.exe	3784	QueryBasicInformationFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	CreationTime: 4/8/2019 3:41:26 PM, LastAccessTime: 4/8/2019 4:44:23 PM, LastWriteTime: 4/8/2019 4:42:44 PM, ChangeTime: 4/8/2019 4:42:44 PM, FileAttributes: A
4:44:23.7340455 PM	ssh.exe	3784	CloseFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	
4:44:23.7342841 PM	ssh.exe	3784	CreateFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
4:44:23.7343032 PM	ssh.exe	3784	QueryBasicInformationFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	CreationTime: 4/8/2019 3:41:26 PM, LastAccessTime: 4/8/2019 4:44:23 PM, LastWriteTime: 4/8/2019 4:42:44 PM, ChangeTime: 4/8/2019 4:42:44 PM, FileAttributes: A
4:44:23.7343116 PM	ssh.exe	3784	CloseFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	
4:44:23.7347504 PM	ssh.exe	3784	CreateFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	Desired Access: Read Data/List Directory, Execute/Traverse, Read Attributes, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, Delete, AllocationSize: n/a, OpenResult: Opened
4:44:23.7347903 PM	ssh.exe	3784	CreateFileMapping	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	FILE LOCKED WITH ONLY READERS	SyncType: SyncTypeCreateSection, PageProtection: PAGE_EXECUTE|PAGE_NOCACHE
4:44:23.7348106 PM	ssh.exe	3784	CreateFileMapping	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	SyncType: SyncTypeOther
4:44:23.7348730 PM	ssh.exe	3784	QuerySecurityFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	Information: Label
4:44:23.7349081 PM	ssh.exe	3784	QueryNameInformationFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	Name: \Users\IEUser\openssh\bin\x64\Debug\ssh.exe
4:44:23.7443246 PM	ssh.exe	3784	Process Create	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	PID: 4480, Command line: "ssh ""  -vvv -W "[localhost]:22" localhost"
4:44:23.7443311 PM	ssh.exe	4480	Process Start		SUCCESS	Parent PID: 3784, Command line: "ssh ""  -vvv -W "[localhost]:22" localhost", Current directory: C:\Users\IEUser\openssh\bin\x64\Debug\, Environment: 
	=::=::\
	=C:=C:\Users\IEUser\openssh\bin\x64\Debug
	=ExitCode=00000000
	ALLUSERSPROFILE=C:\ProgramData
	APPDATA=C:\Users\IEUser\AppData\Roaming
	c28fc6f98a2c44abbbd89d6a3037d0d9_POSIX_FD_STATE=AAAAAAICA80=
	ChocolateyInstall=C:\ProgramData\chocolatey
	ChocolateyLastPathUpdate=131974685787905910
	CommonProgramFiles=C:\Program Files\Common Files
	CommonProgramFiles(x86)=C:\Program Files (x86)\Common Files
	CommonProgramW6432=C:\Program Files\Common Files
	COMPUTERNAME=MSEDGEWIN10
	ComSpec=C:\Windows\system32\cmd.exe
	DriverData=C:\Windows\System32\Drivers\DriverData
	HOMEDRIVE=C:
	HOMEPATH=\Users\IEUser
	LOCALAPPDATA=C:\Users\IEUser\AppData\Local
	LOGONSERVER=\\MSEDGEWIN10
	NUMBER_OF_PROCESSORS=1
	OneDrive=C:\Users\IEUser\OneDrive
	OS=Windows_NT
	Path=C:\Program Files\git\cmd;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\ProgramData\chocolatey\bin;C:\Program Files\Puppet Labs\Puppet\bin;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;C:\Users\IEUser\AppData\Local\Microsoft\WindowsApps;
	PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
	PROCESSOR_ARCHITECTURE=AMD64
	PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 70 Stepping 1, GenuineIntel
	PROCESSOR_LEVEL=6
	PROCESSOR_REVISION=4601
	ProgramData=C:\ProgramData
	ProgramFiles=C:\Program Files
	ProgramFiles(x86)=C:\Program Files (x86)
	ProgramW6432=C:\Program Files
	PROMPT=$P$G
	PSModulePath=C:\Program Files\WindowsPowerShell\Modules;C:\Windows\system32\WindowsPowerShell\v1.0\Modules
	PUBLIC=C:\Users\Public
	SESSIONNAME=Console
	SSH_AUTH_SOCK=\\.\pipe\openssh-ssh-agent
	SystemDrive=C:
	SystemRoot=C:\Windows
	TEMP=C:\Users\IEUser\AppData\Local\Temp
	TERM=xterm-256color
	TMP=C:\Users\IEUser\AppData\Local\Temp
	USERDOMAIN=MSEDGEWIN10
	USERDOMAIN_ROAMINGPROFILE=MSEDGEWIN10
	USERNAME=IEUser
	USERPROFILE=C:\Users\IEUser
	VS140COMNTOOLS=C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\
	windir=C:\Windows
4:44:23.7443361 PM	ssh.exe	4480	Thread Create		SUCCESS	Thread ID: 5296
4:44:23.7447263 PM	ssh.exe	3784	QuerySecurityFile	C:\Users\IEUser\openssh\bin\x64\Debug\ssh.exe	SUCCESS	Information: Owner, Group, DACL, SACL, Label, Attribute, Process Trust Label, 0x100