If you have a file like this on the system, you will be warned every time the OS starts to remove it. So, it is recommended by Microsoft that you not use files of this name or anything like it in the root of C or the root of any other Drive with a folder called Program Files on it.
If you have no choice however (i.e. another application created it which you've purchased and have no control over), you may need to add quotes around your other applications, including the Altiris applications mentioned. Exhaustive testing has not been done to see what is affected, but the three applications mentioned in the Environment section at least will not start correctly on a reboot without this.
For the Altiris Agent, change the ImagePath registry key in HKLM\SYSTEM\ControlSet001\Services\AexNSAgent to have quotes around it.
NOTE: For the other two services, I've not been able to find a way to correct the issue. It would appear that either an INI file, or a dependency, is getting in the way even after changing all path statements in the registry.
Notification Server (NS) 6.X
Deployment Solution (DS) 6.X
Carbon Copy (CC) 6.X