Uninstall check

DVDK · 25th March 2003, 11:36

I have made a modern installer, and now have a question about the uninstall section.

Lets say that my installer includes 3 different sections. The user only installs one of the 3 sections, because he has the needed files that are located in the other 2 sections.

When the user wants to uninstall, then all sections are being uninstalled, but I only want the section he installed with my installer to be uninstalled. How do I do that?

Joost Verburg · 25th March 2003, 12:36

Use InstallOptions to create a custom page.

A components page for the uninstaller is on the TODO list.

kichik · 25th March 2003, 20:18

Or save in the registry, an INI file or in a regular file what sections have been selected. To do so just write a certain value at the end of each section and read it in the uninstaller.

Joel · 25th March 2003, 20:23

I'll have the same thing, but
When I called the uninstaller, it
delete all the files... installed and NOT installed
and it doesn't return in error ...
so maybe you want like the old fashion way...
Delete all the files ... installed and not installed

Just my opinion

DVDK · 25th March 2003, 21:40

Yup, also having big trouble still, but also very hard to understand when english is second languges fro me.

But I have maneced to solve the problem meanwhile with som CMD files which are being executed upon uninstall instead. In that way I can control it, but far from optimal.

Its very easy to understand when you read faqs, but the problem sneaks in when all those foreign words comes along.

kichik · 26th March 2003, 12:39

I am sorry but I don't understand how CMD files help you in uninstalling more then one component... What exactly are you trying to do?

DVDK · 26th March 2003, 14:06

Its because I have made some CMD files for each component, which are being executed after each other upon uninstall.

I want the uninstall section to uninstall the things that where installed by my installer. Lets say that my installer includes:

something.txt
something.exe
someotherthing.exe

Lets say that the user already has someotherthing.exe. He will offcause not install this component again since there is no reason to. But when he execute the uninstaller, will the someotherthing.exe also be uninstalled and I do not want this, since it was not included in the installation.

So the thing I want is that my uninstall section only will uninstall the things the user has included. But I dont know how to make this custom page, since the words are very hard to understand.

Do someone have an example of this, since this will make it easier for me to understand.

kichik · 26th March 2003, 14:17

You don't need a custom page for this. All you need to do is remember what the user have installed. You can do this by writing the installed sections into an INI file, the registry or a regular file. Lets take the INI file for example. In the installer you'll have:

PHP Code:


			
Section 1

  #install section 1 stuff

  WriteIniStr $INSTDIR\uninstall.ini comps section1 yes

SectionEnd



Section 2

  #install section 2 stuff

  WriteIniStr $INSTDIR\uninstall.ini comps section2 yes

SectionEnd

In the uninstaller:

PHP Code:


			
Section uninstall

  ReadIniStr $0 $INSTDIR\uninstall.ini comps section1

  StrCmp $0 "yes" 0 dontUninstallSection1

    # uninstall section1

  dontUninstallSection1:



  ReadIniStr $0 $INSTDIR\uninstall.ini comps section2

  StrCmp $0 "yes" 0 dontUninstallSection2

    # uninstall section2

  dontUninstallSection2:

SectionEnd

DVDK · 26th March 2003, 14:41

Thanks alot. Just what I was looking for. Real easy actually.

kukymann · 30th July 2003, 10:42

Hi, my question is little different.
A user installed section1, section2 and section3. But, what if he wants uninstall only section1 and section3. I thought about Custom page in Uninstall procces, where he selects what section he wants uninstall. It's possible? Or i must wait for A components page?

pengyou · 30th July 2003, 11:22

kukymann, the NSIS Archive has something that seems to do what you want:

"This example demonstrates how to implement Add/Remove functionality in the installer. It operates similar to MS Office installer for example. Unlike conventional NSIS installer it does not only install (upgrade) selected components but also removes unselected components."

http://nsis.sourceforge.net/archive/...php?pageid=298

An example is included so you can see how the idea works.

kukymann · 30th July 2003, 11:40

thx, it's useful

]

25th March 2003, 11:36	#1
DVDK Registered User Join Date: Feb 2003 Posts: 27	Uninstall check I have made a modern installer, and now have a question about the uninstall section. Lets say that my installer includes 3 different sections. The user only installs one of the 3 sections, because he has the needed files that are located in the other 2 sections. When the user wants to uninstall, then all sections are being uninstalled, but I only want the section he installed with my installer to be uninstalled. How do I do that?

25th March 2003, 20:18	#3
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	Or save in the registry, an INI file or in a regular file what sections have been selected. To do so just write a certain value at the end of each section and read it in the uninstaller. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

25th March 2003, 20:23	#4
Joel Debian user (Forum King) Join Date: Jan 2003 Location: Arch land Posts: 4,917	I'll have the same thing, but When I called the uninstaller, it delete all the files... installed and NOT installed and it doesn't return in error ... so maybe you want like the old fashion way... Delete all the files ... installed and not installed Just my opinion * PC: Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM: Archlinux-i686 with MATE. * Laptop: Intel Core 2 DUO T6600 @ 2.20 GHz with 4 GB RAM: Archlinux-x86-64 with MATE.

25th March 2003, 21:40	#5
DVDK Registered User Join Date: Feb 2003 Posts: 27	Uninstall check Yup, also having big trouble still, but also very hard to understand when english is second languges fro me. But I have maneced to solve the problem meanwhile with som CMD files which are being executed upon uninstall instead. In that way I can control it, but far from optimal. Its very easy to understand when you read faqs, but the problem sneaks in when all those foreign words comes along.

26th March 2003, 12:39	#6
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	I am sorry but I don't understand how CMD files help you in uninstalling more then one component... What exactly are you trying to do? NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

25th March 2003, 12:36	#2
Joost Verburg NSIS MUI Dev Join Date: Nov 2001 Posts: 3,717	Use InstallOptions to create a custom page. A components page for the uninstaller is on the TODO list.

26th March 2003, 14:06	#7
DVDK Registered User Join Date: Feb 2003 Posts: 27	CMD Its because I have made some CMD files for each component, which are being executed after each other upon uninstall. I want the uninstall section to uninstall the things that where installed by my installer. Lets say that my installer includes: something.txt something.exe someotherthing.exe Lets say that the user already has someotherthing.exe. He will offcause not install this component again since there is no reason to. But when he execute the uninstaller, will the someotherthing.exe also be uninstalled and I do not want this, since it was not included in the installation. So the thing I want is that my uninstall section only will uninstall the things the user has included. But I dont know how to make this custom page, since the words are very hard to understand. Do someone have an example of this, since this will make it easier for me to understand.

26th March 2003, 14:17	#8
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	You don't need a custom page for this. All you need to do is remember what the user have installed. You can do this by writing the installed sections into an INI file, the registry or a regular file. Lets take the INI file for example. In the installer you'll have: PHP Code: `Section 1 #install section 1 stuff WriteIniStr $INSTDIR\uninstall.ini comps section1 yes SectionEnd Section 2 #install section 2 stuff WriteIniStr $INSTDIR\uninstall.ini comps section2 yes SectionEnd` In the uninstaller: PHP Code: `Section uninstall ReadIniStr $0 $INSTDIR\uninstall.ini comps section1 StrCmp $0 "yes" 0 dontUninstallSection1 # uninstall section1 dontUninstallSection1: ReadIniStr $0 $INSTDIR\uninstall.ini comps section2 StrCmp $0 "yes" 0 dontUninstallSection2 # uninstall section2 dontUninstallSection2: SectionEnd` NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

26th March 2003, 14:41	#9
DVDK Registered User Join Date: Feb 2003 Posts: 27	Nice Thanks alot. Just what I was looking for. Real easy actually.

30th July 2003, 10:42	#10
kukymann Junior Member Join Date: Jul 2003 Posts: 5	Hi, my question is little different. A user installed section1, section2 and section3. But, what if he wants uninstall only section1 and section3. I thought about Custom page in Uninstall procces, where he selects what section he wants uninstall. It's possible? Or i must wait for A components page?

30th July 2003, 11:22	#11
pengyou Major Dude Join Date: Mar 2003 Posts: 571	kukymann, the NSIS Archive has something that seems to do what you want: "This example demonstrates how to implement Add/Remove functionality in the installer. It operates similar to MS Office installer for example. Unlike conventional NSIS installer it does not only install (upgrade) selected components but also removes unselected components." http://nsis.sourceforge.net/archive/...php?pageid=298 An example is included so you can see how the idea works.

30th July 2003, 11:40	#12
kukymann Junior Member Join Date: Jul 2003 Posts: 5	thx, it's useful ]

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