Commandline Add/Remove Program

[smcoe1]

I have developped a new version of software and was wondering if their
was a way to launch the uninstaller for the old software through the
installer. (via commandline or something)

Thanks in advance.

[Mattias Sjögren]

>I have developped a new version of software and was wondering if their
was a way to launch the uninstaller for the old software through the
installer. (via commandline or something)

If it has an MSI based installer you can run

Msiexec.exe /x <product code>
Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[smcoe1]

Thanks,
I will try that to see if it works
Mattias Sjögren wrote:

I have developped a new version of software and was wondering if their
was a way to launch the uninstaller for the old software through the
installer. (via commandline or something)

If it has an MSI based installer you can run

Msiexec.exe /x <product code>
Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[Prabakar Samiyappan]

Hi
we can Unlnstall the Old versionby specifing the property in MSI.
there is a property RemovepreviousVersion set this property to true it will
automatically remove the old version

Regards
Prabakar

"sm****@gmail.com" wrote:

I have developped a new version of software and was wondering if their
was a way to launch the uninstaller for the old software through the
installer. (via commandline or something)

Thanks in advance.

[smcoe1]

Yes I have looked into this (maybe I am doing this wrong).

We have moved from Windows installer (visual Studio 2003) to install
sheild as well as from MFC to .net 2.0.

I have tried adding changing the product ID's to match the MFC version,
but it will not uninstall properly (maybe this is because I am not
populating the correct ID). So I figured that if I run the Uninstaller
via install sheild I may be able to get it to work in the same fashion.

I have tried running the MSI uninstaller manually but I can't seem to
get it to work either. I must be using the wrong Product ID.
Which/where would I find the correct ID.

S.

Prabakar Samiyappan wrote:

Hi
we can Unlnstall the Old versionby specifing the property in MSI.
there is a property RemovepreviousVersion set this property to true it will
automatically remove the old version

Regards
Prabakar

"sm****@gmail.com" wrote:

I have developped a new version of software and was wondering if their
was a way to launch the uninstaller for the old software through the
installer. (via commandline or something)

Thanks in advance.