although it is strongly recommended not to. See
section 2.16 of DMC FAQ. If this is a production server, I would also consider calling support if this is a production server, as this error might be masking something more serious.
Paraphrased here:
To disable the check for SIM prerequisites:
Add the key HKEY_LOCAL_MACHINE\SOFTWARE\Altiris\AIM to the registry.
Create a DWord called IgnoreInstallPrerequisites and set the value to 1.
To enable the Next button if any of the install Readiness checks fail:
Add the key HKEY_LOCAL_MACHINE\SOFTWARE\Altiris\AIM\InstallReadinessCheck\
to the registry. Create a DWord called EnableNextbutton and set the value
to 1.