Normal Ipc Path is a sandbox setting in Sandboxie Ini. It specifies path patterns for which Sandboxie will apply the default sandboxing scheme. This setting is most useful in combination with Rule Specificity where it allows to restore default sandboxing behaviour for paths whose parents have been configured as Open, WriteOnly, or even Closed.
Example:
.
.
.
[DefaultBox]
NormalIpcPath=\RPC Control\AudioSrv
Related Sandboxie Plus setting: Sandbox Options > Resource Access > IPC > Add IPC Path > Access column > Normal