Set variables in the registry (Windows only)
'p4 set' sets the registry variables used by Perforce on Windows platforms. Normally, the variable 'var' is set to 'value'. If 'value' is missing, the variable 'var' is unset. Without any arguments at all, 'p4 set' list variable settings.
The -s flag causes 'p4 set' to set variables for the whole system rather than for the user. You must have NT administrator powers to use this.
Currently, registry variable entries may be overriden by environment variables and (in some cases) flags on the command line.