Qt 5.11.0 (x86_64-little_endian-llp64 shared (dynamic) debug build; by MSVC 2017)
 ()
LinkServer::createProcess  running
 powershell.exe -noprofile -executionpolicy remotesigned -file "C:\dev\projects\qtbug68169\test.ps1"
read 394 bytes ("\r", "GAC    Version        Location                                                                                         \r", "---    -------        --------                                                                                         \r", "True   v4.0.30319     C:\\WINDOWS\\Microsoft.Net\\assembly\\GAC_MSIL\\System.Windows.Forms\\v4.0_4.0.0.0__b77a5c561934e089...\r", "SubscribeProperties Pagenum\r", "")
received "Subscribe"
LinkServer::sendProperty sending PropertyNotify 42

QProcessPrivate::writeToStdin
QWindowsPipeWriter::write "PropertyNotify 42\n"
QWindowsPipeWriter::write WriteFileEx 1 lasterr =  0
QWindowsPipeWriter::writeFileCompleted errorCode= 0 numberOfBytesTransfered= 18
Property broadcasted
read 4 bytes ("OK\r", "")

Qt 5.0 at 629d6eda5cf67122776981de9073857bbc3dcba2,
before 9efbc9f60a511e902d3f8b368296212b43222f52 :
===================================================

Qt: Untested Windows version 6.2 detected!
5.0.0 ()
LinkServer::createProcess  running
 "powershell.exe -noprofile -executionpolicy remotesigned -file "C:\dev\projects\qtbug68169\test.ps1""
", "GAC    Version        Location                                                                                 ", "---    -------        --------                                                                                 ", "True   v4.0.30319     C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c56193", "") scribeProperties Pagenum
received "Subscribe"
LinkServer::sendProperty sending PropertyNotify 42

Property broadcasted
", "") tbytes ("OK
break on receiving "Exit"
LinkServer::createProcess leaving, waitForFinished()= true


Qt 4.8
======

4.8.7 ()
LinkServer::createProcess  running
 "powershell.exe -noprofile -executionpolicy remotesigned -file "C:\dev\projects\qtbug68169\test.ps1""
", "GAC    Version        Location                                                                                      ", "---    -------        --------                                                                                      ", "True   v4.0.30319     C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089", "") scribeProperties Pagenum
received "Subscribe"
LinkServer::sendProperty sending PropertyNotify 42

QWindowsPipeWriter::run WriteFile= 1 written= 18
Property broadcasted
", "") tbytes ("OK
break on receiving "Exit"
LinkServer::createProcess leaving, waitForFinished()= true