I done it a month ago and have seen no ill effects. May be different on different PCs. I have sucessfully re-installed by running and it just asks for your CD or I386 dir.
rundll32.exe setupapi.dll,InstallHinfSection DefaultUninstall 132 C:\WINDOWS\\INF\\PCHealth.inf
C:\WINDOWS\System32\rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 C:\WINDOWS\INF\pchealth.inf