HOST_GetEnv returns the value of the specified environment variable. The function returns an empty string ("") if the value is not defined. Unlike SYS_GetEnv, HOST_GetEnv executes in Silk Test Classic rather than in the Agent. If used in code, HOST_GetEnv is recognized by the compiler and so is seen as a constant rather than a function call. You may find it useful to access environment variables as compiler constants and in use statements.