CAN and CANNOT run powershell within emacs in WSL

[sunjoong]

• Your Windows build number: (Type ver at a Windows Command Prompt)
  Microsoft Windows [Version 10.0.15063]

I have two ways to launch emacs in WSL. The first one is by runemacs.exe and the second by XRun.vbs; more details -- Tips for emacs . I found it cannot run powershell in the second one.

• The key of the first one is to create process C:\Windows\System32\"bash.exe" -l -c emacs by C code and executable file. When emacs is launched, it sit like this; init---init---emacs like "init---init---bash" of "bash.exe ~ -l".

• The key of the second one is to execute shell application "bash.exe" with "-c 'export DISPLAY=:0; emacs&'&" argument by Visual Basic Script and "emacs&" argument; there are two &s, the first one was "emacs&" for launch emacs in background and the second "'export DISPLAY=:0; emacs&'&" for bash, but I think those are irrelevant. When emacs is launched, it sit like this; init---emacs like "init---bash" of "bash.exe ~".

• The difference looks middle init between init---init---emacs and init---emacs.

I found browse-url-edge elisp function hang, so tested to run "/mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe" in shell mode, M-x shell, and it hang in the second, i.e., init---emacs. Of course, it will not hang in "init---bash" but hang in "init---emacs".

I want to the concept of "bash -c 'some commands block'&", so inserted "-l" option, to hope middle init, but in vain.