Uninstall and Add/Remove Programs

vpoptom · 27th March 2003, 06:34

My uninstaller is quite simple and works great if it is called directly. But if I access it via Add/Remove Programs, it still works but it freezes the Add/Remove Programs window. I am using ExecWait in the un.onUninstSuccess function to fire up Internet Explorer with a specific URL after the uninstaller completes. If I remove that portion, all works fine. And again, it works fine if called directly, even with the ExecWait call. But that bloody Add/Remove Programs window freezes up on me if I launch IE at the end.

UPDATE:
Here is the basic uninstall instruction:

Section "Uninstall"
call "un.CloseIE" ; Kill all running IE's
UNRegDLL "$INSTDIR\my.dll"
DeleteRegKey HKLM Software\Microsoft\Windows\CurrentVersion\Uninstall\MyProg"
DeleteRegKey HKLM SOFTWARE\MyProg"
SectionEnd

Function "un.onUninstSuccess"
ExecWait "$PROGRAMFILES\Internet Eplorer\iexplore.exe http://www.me.com"
FunctionEnd

Uninstall occurring on WinXP and built using NSIS v1.9

Any suggestions?
Thanks,
-tom

kichik · 27th March 2003, 12:02

If you are using ExecWait the installer will wait until you close the Internet Explorer window and so will the add/remove control panel as it's waiting for the installer. You should use ExecWait "open" "http://www.me.com". This command will not make the installer freeze and will call the user's default browser which will be a bit nicer then forcing him to use IE. If you want to force IE use Exec instead of ExecWait, it should work too.

vpoptom · 27th March 2003, 15:26

I couldn't get ExecWait "open" to work and simply using Exec was causing the same problem. But I did find a solution based on your answer:

ExecShell open "http://www.me.com"

It indeed opens the user's default browser but that is a better way to go.

Thank you very much!

-tom

kichik · 27th March 2003, 15:36

Heh, meant ExecShell

jdt2oo7 · 13th January 2010, 00:04

I ran into the same issue. I just created a sample script to verify the solution posted on this thread, but it doesn't allow me to do anything until I close the internet browser (this was on XP).

On Vista, I click on another application under Add/Remove window then select to uninstall. A message "Please wait until the current program is finished..." is displayed.

===

Function un.onUninstSuccess
HideWindow
ExecShell open "http://www.yahoo.com"
FunctionEnd

Anders · 13th January 2010, 01:03

as usual, blame MS for this, they are using a job object to wait for all child processes started by the main uninstaller

To work around it, try http://nsis.sourceforge.net/Escape_A...th_New_Process but I think the name of the job object has changed, so you might have to use Process Explorer to find the name and adapt the code

jdt2oo7 · 13th January 2010, 19:09

Hi Anders,

I have no idea "the name of the job object" that you mention. What should I look for using Process Explorer? Thank for your help!

Anders · 13th January 2010, 21:34

The lower pane, it should be listed as a handle (there is also a job tab in the properties for the process, not sure if the name is listed there)

jdt2oo7 · 17th January 2010, 07:22

Don't see it with Process Explorer.
The name of the job object should be "ARP Job", I see that in the function. Another forum also says that:

http://community.flexerasoftware.com...d.php?t=181670

Anyone has any idea why it's not working?

Anders · 17th January 2010, 09:08

Well, either the job name is wrong, or the security for the object is locked down (To find the job object, you look for the handle in the lower pane for the add/remove process, not "your" process)

The other option is to use a out of process COM object, that way you don't have to deal with job objects at all (But you would have to register this COM object etc)

27th March 2003, 06:34	#1
vpoptom Junior Member Join Date: Mar 2003 Posts: 2	Uninstall and Add/Remove Programs My uninstaller is quite simple and works great if it is called directly. But if I access it via Add/Remove Programs, it still works but it freezes the Add/Remove Programs window. I am using ExecWait in the un.onUninstSuccess function to fire up Internet Explorer with a specific URL after the uninstaller completes. If I remove that portion, all works fine. And again, it works fine if called directly, even with the ExecWait call. But that bloody Add/Remove Programs window freezes up on me if I launch IE at the end. UPDATE: Here is the basic uninstall instruction: Section "Uninstall" call "un.CloseIE" ; Kill all running IE's UNRegDLL "$INSTDIR\my.dll" DeleteRegKey HKLM Software\Microsoft\Windows\CurrentVersion\Uninstall\MyProg" DeleteRegKey HKLM SOFTWARE\MyProg" SectionEnd Function "un.onUninstSuccess" ExecWait "$PROGRAMFILES\Internet Eplorer\iexplore.exe http://www.me.com" FunctionEnd Uninstall occurring on WinXP and built using NSIS v1.9 Any suggestions? Thanks, -tom Last edited by vpoptom; 27th March 2003 at 07:32.

27th March 2003, 12:02	#2
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	If you are using ExecWait the installer will wait until you close the Internet Explorer window and so will the add/remove control panel as it's waiting for the installer. You should use ExecWait "open" "http://www.me.com". This command will not make the installer freeze and will call the user's default browser which will be a bit nicer then forcing him to use IE. If you want to force IE use Exec instead of ExecWait, it should work too. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

27th March 2003, 15:36	#4
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	Heh, meant ExecShell NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

13th January 2010, 01:03	#6
Anders Moderator Join Date: Jun 2002 Location: ${NSISDIR} Posts: 5,449	as usual, blame MS for this, they are using a job object to wait for all child processes started by the main uninstaller To work around it, try http://nsis.sourceforge.net/Escape_A...th_New_Process but I think the name of the job object has changed, so you might have to use Process Explorer to find the name and adapt the code IntOp $PostCount $PostCount + 1

13th January 2010, 21:34	#8
Anders Moderator Join Date: Jun 2002 Location: ${NSISDIR} Posts: 5,449	The lower pane, it should be listed as a handle (there is also a job tab in the properties for the process, not sure if the name is listed there) IntOp $PostCount $PostCount + 1

27th March 2003, 15:26	#3
vpoptom Junior Member Join Date: Mar 2003 Posts: 2	I couldn't get ExecWait "open" to work and simply using Exec was causing the same problem. But I did find a solution based on your answer: ExecShell open "http://www.me.com" It indeed opens the user's default browser but that is a better way to go. Thank you very much! -tom

13th January 2010, 00:04	#5
jdt2oo7 Member Join Date: Oct 2009 Posts: 72	I ran into the same issue. I just created a sample script to verify the solution posted on this thread, but it doesn't allow me to do anything until I close the internet browser (this was on XP). On Vista, I click on another application under Add/Remove window then select to uninstall. A message "Please wait until the current program is finished..." is displayed. === Function un.onUninstSuccess HideWindow ExecShell open "http://www.yahoo.com" FunctionEnd

13th January 2010, 19:09	#7
jdt2oo7 Member Join Date: Oct 2009 Posts: 72	Hi Anders, I have no idea "the name of the job object" that you mention. What should I look for using Process Explorer? Thank for your help!

17th January 2010, 07:22	#9
jdt2oo7 Member Join Date: Oct 2009 Posts: 72	Don't see it with Process Explorer. The name of the job object should be "ARP Job", I see that in the function. Another forum also says that: http://community.flexerasoftware.com...d.php?t=181670 Anyone has any idea why it's not working?

17th January 2010, 09:08	#10
Anders Moderator Join Date: Jun 2002 Location: ${NSISDIR} Posts: 5,449	Well, either the job name is wrong, or the security for the object is locked down (To find the job object, you look for the handle in the lower pane for the add/remove process, not "your" process) The other option is to use a out of process COM object, that way you don't have to deal with job objects at all (But you would have to register this COM object etc) IntOp $PostCount $PostCount + 1

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