LeCroy provides some software called LIFT (LeCroy Interactive FASTBUS Toolkit); however, they no longer support it. The FermiLab people have updated the software with something called SPUDS (Single Platform Uniting Diagnostic Software). This is also old. It is only 16-bit .dll's. This has NOT worked for us. We have been using National Instruments LabWindows CVI 3.0.1, and it just can't deal with 16-bit .dll's. So, our project is to create a 32-bit .dll for the 1691B.