I'm working on a InstallScript MSI project. I want to install .netframework3.5 during installation process. See the following code:
#define PROGRAM1 TARGETDIR^"dotnetfx35.exe"
export prototype DefaultFeature_Installed(); function DefaultFeature_Installed() begin LaunchAppAndWait (PROGRAM1, "", WAIT); end;
Then a error massage pop-up: The Windows Installer service is unavailable. Another application may be running setup. Finish any installations in progress, or restart your computer, and then re-run setup. can't vista run two windows installers at the same time???:confused: Anyone have any idea or solution about this problem? thanks in advance
Christopher Painter wrote: Nope. There are two mutex's for you to be aware of:
1) Only one UI sequence per process 2) Only one Execute sequence per machine
In IS2009/MSI 4.5 you have more choices, but for IS2008 uou need to use a Setup Prerequisite to do what your trying to do.
What are the other options in IS2009? I have the same problem, but I have IS2009 Premiere edition. I'd rather not use a prerequisite as the .NET Framework is required by an optional component.
Since I am making an Installscript MSI project I don't have the option of component/feature prerequisites I believe; but if there was a way of making the prerequisite specific to the component/feature that would be ideal. My workaround for this is to have a custom action trigger the .NET Framework installer if the feature has been selected.
