Pollyy89
2nd October 2010 22:33 UTC

Finding already installed programs
Hello!

I'm very new to NSIS and I haven't yet grasped the full logic of the script yet. I'm on a project to create an installer for a program and so far I've used the Eclipse plug-in. It's quite neat as it creates a working script for you after just adding a few parameters. There are however a few stuff I need to add myself.

I need my installer to check to see if the computer has SQL Server 2008 Express installed, and if not, offer to install it. I know how to add installers in my installer, but I have no idea how to find already installed programs.

Any help on this subject would be much appreciated!

MSG
3rd October 2010 13:17 UTC

You can probably look for some SQLS2k8-specific registry keys, if those exist.
http://nsis.sourceforge.net/Docs/Chapter4.html#4.9.2

There may be better ways to obtain the info you need, though. Perhaps someone else knows? Try googling, too.

Animaether
3rd October 2010 14:49 UTC

MSDN says the appropriate method would be to go through WMI *cringe* while not recommending using the registry method. Note that this doesn't mean you -can't- use the registry.

edit: forgot URL.. http://msdn.microsoft.com/en-us/libr...QL.100%29.aspx

johnpaullreddy17
24th August 2011 15:22 UTC

Originally posted by Pollyy89
Hello!

I'm very new to NSIS and I haven't yet grasped the full logic of the script yet. I'm on a project to create an installer for a program and so far I've used the Eclipse plug-in. It's quite neat as it creates a working script for you after just adding a few parameters. There are however a few stuff I need to add myself.

I need my installer to check to see if the computer has SQL Server 2008 Express installed, and if not, offer to install it. I know how to add installers in my installer, but I have no idea how to find already installed programs.

Any help on this subject would be much appreciated!