I've just found a bug in VMWare Server 2 and would like to report it. The "Lock this snapshot" function doesn't work as expected. It's overriden by "Revert to snapshot". Here are the steps to reproduce this bug.
Use any VM and take a snapshot.
"Configure VM" > "Snapshot" tab >select "Lock this snapshot" and validate this.
At this point, you should see there's only one possible command under "Snapshot" and it is "Revert to snapshot".Click on "Revert to snapshot" and answer yes.
Now, "Snapshot" command has those three usual subcommands, ie "Take snapshot", "Revert to snapshot" and "Remove snapshot" !http://communities.vmware.com/message/1138354/!!
If you check again "Lock this snapshot", it is NOT selected! You could repeat step 2 and 3 again and again ....
I think this bug is the same as another bug reported by another user: