Solving the problem that Vista can't use input method

Many friends in Windows Vista complain that the input method cannot be used normally. For example, the five-stroke input cannot be used normally, the purple pinyin cannot be used, and the pinyin plus can not be used. Especially when running in IE browser.
This time is generally due to the role of the IE protection mode. Since the IE protection mode relies on the functions of UAC, UIPI and MIC, it can be considered that the security functions of UAC, UIPI or MIC cause problems with these input methods.
1. One mountain can't be two tigers
The IE process in protected mode runs at the level of “low”, so it can't write to the user profile area, which can prevent malicious web pages from destroying user and system data. At the same time, IE will automatically redirect this write operation to a specific area. This ensures security while keeping IE components and add-ons up and running.
But if the IE add-in must share data with a "medium" process, then there may be problems, because the data accessed by the IE process (add-in) is actually redirected. And "intermediate" will still go to the original location, which may lead to errors.
Solution: Modify these add-ons so that they have the same access to a specific area as the external process; or let the external process run at the "low level" level.
In addition, you can also manually modify the system to set the shared area to allow "low-level" process access.
2, UIPI troubles
If the IE add-on needs to send Windows messages to external processes, it will be blocked. This is due to the role of UIPI, which only allows advanced processes to send messages to peer or low-level processes. This is somewhat similar to previous underground parties, allowing only superiors to contact subordinates (single line contact). But this may affect some old input methods and cause them to not work properly.
Solution: Modify the input method to allow external processes to accept specified Windows messages. Or use a security mechanism such as RPC to communicate between the IE process and the advanced process.
At present, you can only manually modify the system, forcibly disable UIPI, and ensure the compatibility of the input method. However, this will weaken the security of the system, and it will also castrate the function of the IE protection mode (although the system prompts that the IE protection mode is still working, it has been greatly weakened).
In HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System, create a new DWORD key value EnableUIPI, set to 0.
Restart the system, and then test a few times, it should be able to solve the problem similar to the purple pinyin, pinyin plus, and the real "completely" solution.