Well, Technical was trying to say that internally, the REG_MULTI_SZ items are stored as a group of null-terminated strings, terminated by a double null at the end of the whole group.
Some programs may “damage” the item by working incorrectly with the registry value (using REG_BINARY, instead of REG_MULTI_SZ, or something like that). Therefore, the state of the key will be “wrong” - the usual programs won’t be able to work with it correctly.

In Win2000, there are 2 regedits: regedt32.exe (that shows the REG_MULTI_SZ as a list of items) and regedit.exe (that shows it as hex). In WinXP, however, there’s only regedit. It seems to display the REG_MULTI_SZ strings as a list - so to see if anything is wrong “inside”, you may have to export the key to a .reg file or something like that.
When you modify (clear) the key, the problem would probably go away… as you have encountered :slight_smile: