zx.pk.ru collective found interesting, previously unknown, software for the poisk1: http://www.deep-shadows.com/hax/wordpress/?page_id=301

HyperBIOS -- makes screen output 2-3 times faster; – solves lot of compatibility issues; – remaps keyboard layout and makes it more comfortable; – supports low-cost joystick interface, developed by me. Many people said that this was the most usefull program for that PC smile

SlowPlay -- Highly optimized *.STM [Scream Tracker 2 modules] player. Can play STM files on VERY slow PCs like POISK-1.

Haven't tested them much yet (but found a bug in the driver)...