Mine is Windows Installer 5 as well. ... View more

DLee65, How to I tell with version of Windows Installer I'm targeting? If I try to include MSI.h, I get a fatal error "can't open include file" ... View more

Thanks for the info DLee65. While you're here, maybe you can answer another question I had... I was wanting to filter the IS_SQLSERVER_LIST, but couldn't figure it out from an Installscript project. From an MSI project, I could do it with this Installscript code hDB = MsiGetActiveDatabase(hInstall); // open view into ListBox table MsiDatabaseOpenView(hDB, "SELECT * FROM `ListBox` WHERE `Property`='IS_SQLSERVER_LIST'", hViewlist); MsiViewExecute(hViewlist, NULL); It's giving a compile error on MsiGetActiveDatabase when trying to use in Installscript. I assume because it's not an MSI project. Any way to filter the IS_SQL_SERVER_LIST in a plain Installscript project? Thanks, David ... View more

If this doesn't work, I may have to check that out. ... View more

No. I'm thinking of just trying to use an Installscript project, that would allow me to run the SQL installer without having the MSI conflicts. ... View more

I read that starting with either 2008 or 2008 R2, MS changed the install to MSI based, that's why it doesn't work anymore. Thanks for your help! ... View more

Yes, SQL Express 2012. My project is a basic MSI project and I'm seeing that the problem is trying to launch SQL's MSI installer from an MSI installer and that's not supported. Have you installed SQL from within an MSI? ... View more

Here's what I did to solve the problem... 1. Created a powershell script that checks for at least 8gb of RAM. If more than 8gb, it writes a text file to the CommonFiles folder. 2. Created a prerequisite that looks for the text file. If the file isn't there, it runs the powershell script. If that fails, the install terminates. I include powershell.exe AND the script file in my prerequisite. I tested disabling Powershell on a Win 8.1 VM and it still runs fine. Thanks for all the help Dan! ... View more

I'm looking into possibly running a powershell script that can return the physical memory as the first prerequisite. We'll see how that goes. Thanks for all of your help Dan! ... View more

Thanks Dan, I think this is getting me on the right track. I have added the OnBegin function, but it looks like the prereqs are running before that gets called. Is there a way to check before any of the prereqs start? Thanks, David P.S. I'm still very new with Installshield, I appreciate your patience. ... View more

It's an InstallScript project. I don't see anything about install conditions on the General Information tab. ... View more