I'm using a queue to hold a series of strings that are complete command line
arguments to start the silent/unattended installation of various pieces of
software. Here is some sample code.
1 Dim myProcess as New Process
2 myProcess.Enabl eRaiseEvents = True
3 myProcess.Start Info.Filename = myQ.Dequeue ' The string value in this
instance is "c:\windows XP-KB824146-x86-ENU.exe /u /n /z"
4 Do Until (myProcess.HasE xited = True)
5 Loop
6 AutoLogon() ' Sets various registry keys.
7 RunOnce() ' Sets some more registry keys.
8 Shell("shutdown .exe -r -f -t 05") ' Forces a reboot of the system in 5
seconds.
The problem is that on line 4 it throws an exception "No Process is
associated with this object".
The other problem is that if I take out the do loop entirely the .exe fires
off and begins installation but the program doesn't wait for it to finish.
It immediately move on to 6, 7, and worst of all 8. Then the system reboots
mid-installation.
Is there a good way to make the thing wait until the installation is done
before continuing on? I piddled with Process.ExitCod e as well with no luck.
Thanks in advance. =)
5  8088 
I don't see myProcess.Start () anywhere. Looks like that's what you need.
Would be good also to throw in some Sleep() call inside loop.
HTH
Alex
"Ty Moffett" <tm******@solar c.com> wrote in message
news:eN******** ******@TK2MSFTN GP12.phx.gbl... I'm using a queue to hold a series of strings that are complete command
line arguments to start the silent/unattended installation of various pieces of
software. Here is some sample code.
1 Dim myProcess as New Process
2 myProcess.Enabl eRaiseEvents = True
3 myProcess.Start Info.Filename = myQ.Dequeue ' The string value in this
instance is "c:\windows XP-KB824146-x86-ENU.exe /u /n /z"
4 Do Until (myProcess.HasE xited = True)
5 Loop
6 AutoLogon() ' Sets various registry keys.
7 RunOnce() ' Sets some more registry keys.
8 Shell("shutdown .exe -r -f -t 05") ' Forces a reboot of the system in
5 seconds.
The problem is that on line 4 it throws an exception "No Process is
associated with this object".
The other problem is that if I take out the do loop entirely the .exe
fires off and begins installation but the program doesn't wait for it to finish.
It immediately move on to 6, 7, and worst of all 8. Then the system
reboots mid-installation.
Is there a good way to make the thing wait until the installation is done
before continuing on? I piddled with Process.ExitCod e as well with no
luck.
Thanks in advance. =)
Hi Ty,
Still going for it. ;-)
If you have the filename and the arguments mixed,
myProcess.Start Info.Filename = myQ.Dequeue
where it's "c:\windows XP-KB824146-x86-ENU.exe /u /n /z",
it will look for a file called
"windowsXP-KB824146-x86-ENU.exe /u /n /z"
which it won't find, of course.
You need to separate the args out and have
myProcess.Start Info.Filename = <just the file path>
myProcess.Start Info.Arguments = <the arguments>
(as well as the Process.Start that Alex mentioned).
Regards,
Fergus
In article <eN************ **@TK2MSFTNGP12 .phx.gbl>, Ty Moffett wrote: I'm using a queue to hold a series of strings that are complete command line
arguments to start the silent/unattended installation of various pieces of
software. Here is some sample code.
1 Dim myProcess as New Process
2 myProcess.Enabl eRaiseEvents = True
3 myProcess.Start Info.Filename = myQ.Dequeue ' The string value in this
instance is "c:\windows XP-KB824146-x86-ENU.exe /u /n /z"
4 Do Until (myProcess.HasE xited = True)
5 Loop
6 AutoLogon() ' Sets various registry keys.
7 RunOnce() ' Sets some more registry keys.
8 Shell("shutdown .exe -r -f -t 05") ' Forces a reboot of the system in 5
seconds.
The problem is that on line 4 it throws an exception "No Process is
associated with this object".
The other problem is that if I take out the do loop entirely the .exe fires
off and begins installation but the program doesn't wait for it to finish.
It immediately move on to 6, 7, and worst of all 8. Then the system reboots
mid-installation.
Is there a good way to make the thing wait until the installation is done
before continuing on? I piddled with Process.ExitCod e as well with no luck.
Thanks in advance. =)
Here is a stupid little example....
Option Strict On
Option Explicit On
Imports System.Collecti ons
Imports System.Diagnost ics
Module Module1
Private Class Command
Public Sub New(ByVal cmd As String, ByVal args As String)
Me.cmd = cmd
Me.args = args
End Sub
Public cmd As String
Public args As String
End Class
Sub Main()
Dim cmds() As Command = {New Command("cmd", "/c dir c:\windows
/p"), New Command("cmd", "/k echo hello, world")}
Dim q As New Queue(cmds)
Dim cmd As Command
Dim p As Process
Do While q.Count > 0
cmd = DirectCast(q.De queue(), Command)
p = Process.Start(c md.cmd, cmd.args)
p.WaitForExit()
Loop
End Sub
End Module
HTH
--
Tom Shelton
MVP [Visual Basic]
Thank you both Gentlemen. I'll take yor advise and see what I can do.
Thanks again!
"Fergus Cooney" <fi*****@post.c om> wrote in message
news:%2******** ********@TK2MSF TNGP10.phx.gbl. .. Hi Ty,
Still going for it. ;-)
If you have the filename and the arguments mixed,
myProcess.Start Info.Filename = myQ.Dequeue
where it's "c:\windows XP-KB824146-x86-ENU.exe /u /n /z",
it will look for a file called
"windowsXP-KB824146-x86-ENU.exe /u /n /z"
which it won't find, of course.
You need to separate the args out and have
myProcess.Start Info.Filename = <just the file path>
myProcess.Start Info.Arguments = <the arguments>
(as well as the Process.Start that Alex mentioned).
Regards,
Fergus
Ok, I'm now trying to use enumerator to put what is still in my queue into
the streamwriter so i can write it back to disk. I'm confused...this error
makes no sense to me. I'm sure I'm doing something dumb.
Do While myQ.GetEnumerat or.MoveNext
sw = myQ.GetEnumerat or.Current 'This line gets an exception: Enumeration
has not started. Call MoveNext.
Loop
Here is the main() code without the subroutines.
' Run the program
' read the first command from the queue
' run the command
' remove the item from the queue
' set automatic login information
' reboot
' rerun the program until the queue is empty
Module HandsOff
Public Sub main()
Dim fs As New FileStream("c:\ HandsOff.txt", FileMode.OpenOr Create,
FileAccess.Read Write)
Dim sr As New StreamReader(fs )
Dim sw As New StreamWriter(fs )
Dim line As String
line = sr.ReadLine()
Dim myQ As New Queue
Do Until line = Nothing
myQ.Enqueue(lin e)
line = sr.ReadLine
Loop
' Displays the properties and values of the Queue.
Console.WriteLi ne("myQ")
Console.WriteLi ne(ControlChars .Tab + "Count: {0}", myQ.Count)
Console.Write(C ontrolChars.Tab + "Values:")
PrintValues(myQ )
If myQ.Count > 0 Then
Dim myProcess As New Process
myProcess.Enabl eRaisingEvents = True
myProcess.Start Info.FileName = myQ.Dequeue
myProcess.Start Info.Arguments = myQ.Dequeue
'Write the remaining Queue members to the text file.
Do While myQ.GetEnumerat or.MoveNext
sw = myQ.GetEnumerat or.Current
Loop
'Start the process.
myProcess.Start ()
Do Until (myProcess.HasE xited = True)
Loop
'Registry hacks to enable automatic logon upon reboot
AutoLogon()
'Registry hacks to enable this program to start upon logon.
RunOnce()
'Reboot the computer.
Shell("shutdown .exe -r -f -t 05")
End If
'Registry hacks to disable automatic logon upon reboot.
UndoAutoLogon()
End Sub
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