Thanks for the reply. Now, I tried the little guide Ishiyoshi posted but had no sucess either. Even though the OpenMG SM4.1 disappeared from the Add/Remove Program List and from the Uninstall list from EasyCleaner, it is still showing up on RegCleaner and I'm not sure how RegCleaner works exactly. On RegCleaner I have selected OpenMG SM and clicked on "Uninstall" but nothing happend and I don't know if the "Remove Selected" button deletes the string on the register or simply remove the program from it's own list so I decided not to press it until further information. Anyway I have tried to install SS3.2 but no success. OpenMG SC4.2 don't want to be installed. My guess is because of 4.1 that is still there. Whenever the SS installer was trying to install OpenMG SM it said Error 1617 (or 1607, don't remember right now) and aborted the installation. And the problem persists. When I try to open SS3.2 it says I need a newer version of OpenMG SM. And yes, I have tried with both installers, the online and offline ones and none worked out. I have no idea where are the remaining files from SM4.1 and have no idea about how to remove them. This is really troblesome since there's no other way to tranfers music for my Hi-MD edit: Well, tried everything that came to my mind except format. I don't know it I can't install SC 4.2 because of remains of 4.1 because I think I have already removed everything relevant from 4.1. Whenever I try to install SS3.2 (MDCF off line version it says this when installing the SM=> "1607:Unable to install InstallShield Script Runtime" and after this the installation of the SM is aborted and the other components are installed normally. There's a possibility that the problem is with the installer so I'll try to install with the online version and see what happens. If anyone have any information that could share with me I would appreciate. Thanks