transformice.exe is a program which is most likely NOT a virus or malware. So, if transformice.exe is on your laptop or desktop computer, it is most likely ok, and will NOT be a cause for concern. Even if your PC is virus-free, it is still recommended to purchase a well-known antivirus with a good track record, in order to defend your PC against viruses and malware.
This application is usually stored in C:\Program Files (x86)\Transformice\Transformice.exe.
The MD5 checksum for this file is 055a34bd625727d3e1f9fc15e2ff6c3b.
This application does NOT run as a Windows service. This is usually a good sign.
This executable uses the net to communicate. In this day and age this is expected from a program. For example, most of the apps on your PC check for new updates. In order to do this, Internet communications are necessary.
This application runs as a 32-bit program. It can not benefit of the entire power of current PC CPUs. This ordinarily happens because the makers did not bother to upgrade it to 64-bit code.
transformice.exe appears to have visible windows. This is good because it doesn't work in a kind of stealth mode. Its operation is clearly shown to you.
The digital signature is missing from this program. The authors did not sign it. This is probably bad.
It has an uninstall routine, which is a good sign. si are uninstall.