<- AMD Enhanced Am486 <- AMD Am5x86 <- AMD K5 <- AMD K6 <- Centaur IDT-C6 <- Cyrix 486DRx2 <- Cyrix 5x86 <- Cyrix 6x86 & 6x86MX <- IBM 6x86 & 6x86MX <- NexGen NX586 <- SGS-Thomson ST486 <- SGS-Thomson 6x86 <- Texas Instruments TI486DX2 & DX4 Ok so you listed all the code compatable cpus, they are for all intents the same thing only varying in performance. Still intel instruction set. <Windows CE 2.0 supports the following chipsets: Never heard of this one. <- Digital Ok can you be specific... at one time the PDP-11, VAX and Alpha were all in production concurrently. I'd suspect Alpha. MS never had a clue about VAX. Allison