Delete an environment variable.

BOOLEAN 
DeleteRtEnvironmentVariable(
    LPCSTR szName);

Parameters

szName

A pointer to the name of the environment variable to delete.

Return value

Returns TRUE on success. Returns FALSE on failure. Call GetLastRtError() to find the failure status. Possible status values include:

E_CONTEXT

The variable name is null.

E_EXIST

The variable name does not exist.

Requirements