Environment variables are handled as in PC-Admin, but are preserved across invocations in the Registry. Exported variables (using the EXPORT directive) are not placed in the Windows global environment. However, any application that is started will have the exported variables set in its environment.
In addition to variables explicitly set in the SNC script, the PC-Admin server sets local variables on clients each time a user logs in. For a list of SNC script variables, see "Environment Variables Local to SNC Scripts".
In general, 32-bit applications should use the system Registry for application-specific data and not rely on the environment.