Any alternatives to Change service executable path to a common protected location?

Hi all,

We have a security recommendation to Change service executable path to a common protected location, e.g., move the service/app to C:\Program Files. 

The service/app in question was installed by a vendor on a different drive letter, and to move it per the above recommendation will cost (a lot of) time and money for them to do. 

Are there any alternatives to this, such as hardening/strengthening the current file/folder path?