The latest versions of Editor and Server should work adequately on Windows 7 systems although there can be issues with the part open/save menu's depending on where your test programs are located. They may show one folder as selected and be looking in a different location. We have many customers using the software on Windows 7 32 and 64 bit without issue. A new version is in the pipeline with all possible Windows 7/8 issues resolved but this will not be released for several weeks yet. Please try the latest versions - they will also work on Windows XP - and let me know how you get on. Please make sure the user account installing the software is an administrator account. After upgrading your software you should also make sure your AT3600's have the latest version of firmware installed.