Why does MetaLAN disappear when I probe the network?

When MetaLAN is configured to use ADSI to find the computers in the selected domains MetaLAN may stop responding when the "Probe Network" button is pushed.  After a long pause MetaLAN may unexpectedly terminate.  Also, if the Network Probe succeeds, MetaLAN may not find the computers in some domains.

This only occurs when using ADSI to find computers on the network.

This is resolved in version 1.8.12.153 of MetaLAN Administrator.