感谢楼上。step7-micro/win smart要与starter安装在同一PC里情况也一样。
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Installing STARTER 4.3.3.0 on a PC with installed STEP7-MICRO/WIN V4.0.9.25
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6SL3072-0AA00-0AG0 STARTER DVD (CURRENT VERSION)
Summary
STARTER 4.3.3.0 cannot be installed on a PC, on which STEP7-MICRO/WIN V4.0.9.25 is already installed.

Question
How can both products be installed on one PC?
Answer
The STARTER setup prevents installing STARTER 4.3.3.0 on a PC with installed STEP7-MICRO/WIN V4.0.9.25. However, it is possible to install STEP7-MICRO/WIN V4.0.9.25 on a PC on which STARTER V4.3.3.0 is already installed.

This means that both products can be installed on one PC:

Uninstall STEP7-MICRO/WIN V4.0.9.25
Install STARTER V4.3.3.0
Install STEP7-MICRO/WIN V4.0.9.25
It is not possible to simultaneously operate the STARTER and STEP7-MICRO/WIN programs.