I've dealt with a problem of a small number of poorly written third-party shell extensions crashing within Lasso as they try to draw on top of it's process icons. Now, I've tried 3 different methods of icon extraction, so I think other similar products are affected as well by these bad shell extensions.
Regardless, since this problem doesn't affect most of us, I've left process icons enabled by default.
However, if Lasso crashes, or you can't run it at all, then you need to use the attached registry tweak to Disable Process Icons with-in Process Lasso (https://bitsum.com/files/pl_disable_process_icons.zip)