SilverFast can be integrated into Photoshop with the plug-in technology
Within "import" dialog in Photoshop you will find the installed SilverFast-Photoshop-PlugIns.
You will need for the photoshop-plugin a version of Photoshop 5.5 or higher, besides you always can use the TWAIN Version for direct Scanning into several TWAIN-compatible Applications.
SilverFast now ships with SF Launcher, a small application that is capable of launching the SilverFast Plug-in. It works as an alternative way of calling SilverFast if you don't need the full functions of Photoshop.