replied on February 14, 2014
I've not encountered any issues with the SDK runtime installation on a windows 7 machine. Furthermore, the structure of the exe is such that it should auto-detect the OS you are using and install the proper one. You can manually extract the actual msi's from the exe and see if that works better (maybe a bug in the exe wrapper?) by running it from the command line with the -x argument.
That said, if you are having an issue where you can't install it on Windows 7, please talk to your reseller about opening a support case. As noted, I haven't encountered any issue like that before (and indeed use a Windows 7 machine for my test build runs).
btw: In general it's considered recommend to use the runtime installation for external deployment as it'll be sure to have everything you might need (from the Laserfiche library side). The msm's require you to know the internal dependency chains but, if you do, they allow you to only have one installation package. Whatever you do, make sure you install the runtime libraries in some fashion and don't rely on whatever local Lf products the machines otherwise have installed.