Dear all MDL members, My Dad gave me a difficult question which I must solve it in a week. If I can help him with his problem, well he promised me he will buy me a new desktop. The question itself is simple, "How to remote control ONE or more desktop computer(s) using WinXP Pro?" But he is at the following situation / has such requirements: 1. There're 4 partners totally (including Dad). 2. Each partner has 1 desktop (XP Pro) at home. 3. There're 4 desktops (WinXP Pro) in shop (only 1 shop). 4. All involved desktops have different but constant Hong Kong IP addresses. 5. Desktops in shop will be controlled by any partners' PCs at any time. 6. Documents will be transmitted between desktops at home and in shop. (7). Administrative power to control desktops in shop are the same for all partners. 8. Desktops in shop cannot control their PCs. 9. It will be best if no additional software(s) are needed (only use WinXP Pro). 10. It will be best if 1 partner can control several desktops in shop. 10. Additional software(s) they use must be legal for any business purposes. If requirement 5 cannot be met, so Dad prefers each partner control only 1 single desktop at any time. Then requirement 7 is not needed by logic. If requirement 6 cannot be met, just let me know. Any guides can solve his problem? Any questions, please ask. I'm just being so hurried to get a solution.