I have a suggestion for the SMSSLP parameter and registry key.
I was investigating the registry Key SMSSLP under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\CCM.
Most of my computers have a decommissioned Management Point in this Key. As far as I can tell this won’t have any effect. But this is confusing when troubleshooting client problems.
After some experiments these are my conclusions:
• The key is filled in when you use SMSMP=… as parameter for ccmsetup.exe.
• The key is read when you start ccmsetup.exe and then added to the command line as SMSSLP=…
• You can only change the key by adding SMSSLP=… yourself to the command line. (Or edit the registry of course.)
SMSSLP is no longer documented under https://docs.microsoft.com/en-us/sccm/core/clients/deploy/about-client-installation-properties
Maybe this information can be added to the documentation.
A better solution would be to get rid of the key completely, when it no longer has a function. Or change it when SMSMP is added as a parameter.
AdminAaron Czechowski [ConfigMgr Product Team] (Admin, System Center Configuration Manager) commented
Moving to client deployment, as this is product feedback. We explicitly removed SMSSLP parameter from documentation when SLP dropped. We don't recommend SMSSLP, it should be replaced by SMSMP.