Simatic Step7 Pro 2010 is one of the first versions to support S7-300 / 400 PLC programming on windows7 platform.
This version is quite lightweight so it is suitable for low-end computers
Operating system
+ Microsoft Windows XP Professional SP2/SP3
+ Microsoft Windows Server 2003 R2 SP2
+ Microsoft Windows 7 32 Bit Ultimate, Professional and Enterprise
+ Microsoft Windows 7 64 Bit Ultimate, Professional and Enterprise
+ Microsoft Windows Server 2008 R2 (64 Bit)
Link Download Software 
>>> Download Simatic_Step7_Professional_2010_SR2
>>> Download SIM_EKB_Install for Simatic Step7
Password Extract: plc247.com
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If you have any problems in the process of downloading and installing the software, please contact plc247.com, plc247 will answer your questions as soon as you read it.
Thanks and best regards!
