Strange log entry from Microsoft IP

Does anyone know what this is???

[Moby1]

This has been appearing in my logs every so often and I have no idea what it is and what it may do.

2000-12-11 18:17:24 207.46.125.17 - GET /++ 404 - -
2000-12-11 18:20:56 207.46.125.17 - GET /++ 404 - -
2000-12-11 18:20:56 207.46.125.17 - GET /++ 404 - -
2000-12-11 18:22:38 207.46.125.17 - GET /++ 404 - -
2000-12-11 18:22:43 207.46.125.17 - GET /++ 404 - -

The IP address is from Microsoft. No UserAgent is logged and no Referrer is logged. Any ideas?

[NFFC]

>Any ideas?

Just guessing Moby1, but could it be users of MSN's dial-up service.
Take a look at [flameghana.org] the entry dated 10/14/00.

[Moby1]

Thanks NFFC. The IP is the same, but I'm just wondering why they would request "/++". I thought it might be some sort of hacker thing.