We can provide limit support old version of software. For example, we can install Windows 7 into workstation, if the workstation supported. But if you want to install a software which cannot support Windows 7, we cannot do it.

Secondary, for using old version of software, it may cause security issue, since it kind of software will not receive update from manufacture. Some bug or security hole will not be fixed. We suggest our clients to upgrade their system as soon as possible and do not suggest user to use. But in reality, user may need to continue using that kind of software to support their daily operation. We can provide limit support on it.