chsime.exe is a application which is most likely legit. So, if chsime.exe is on your computer, it is most likely ok, and will NOT cause problems. Even if your system is virus-free, it is still recommended to use a good antivirus with a good detection rate, in order to yourself your system against potential security problems.
Normally, this program is stored in C:\Windows\System32\InputMethod\CHS\ChsIME.exe.
The MD5 checksum for this program is 50f0167afbe098fbfe674a3abd1445e8.
This program does NOT run as a Windows service. This is usually a good sign.
chsime.exe appears to have something to do with Windows SFC (System File Checker) or Windows File Protection.
This is a x64 executable. It runs using the full capacity of nowadays' CPUs.
chsime.exe has a digital signature. Nowadays the large majority of legit programs are digitally signed.
The digital signature extracted from chsime.exe verifies as ok. This is very good.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have a removal routine set up in registry.