Our site is getting hammered by MSN bot 65.54.188.29, it is passing big company id's instead of 10 digit id which is causing a lot of errors on our server & performance. Can anyone advise on a fix, perhaps we need to place something in the robots.txt?

Some of our logs are below,

09:54:16",,"ODBC Error Code = 22003 (Numeric value out of range)
[Microsoft][ODBC SQL Server Driver][SQL Server]The number '2704761012300045935026544063089455660250879685212 06553584895358851535885953588645358867535887453589 0653625205362523' is out of the range for numeric representation (maximum precision 38).

Error 1160 10/21/05 09:54:16",,"65.54.188.29, msnbot/1.0 (+http://search.msn.com/msnbot.htm), ODBC Error Code = 22003 (Numeric value out of range)
[Microsoft][ODBC SQL Server Driver][SQL Server]The number '2704761012300045935026544063089455660250879685212 06553584895358851535885953588645358867535887453589 0653625205362523' is out of the range for numeric representation (maximum precision 38).

Date/Time: 10/21/05 09:54:16
Browser: msnbot/1.0 (+http://search.msn.com/msnbot.htm)
Remote Address: 65.54.188.29
Query String: Companyids=270476101230004593502654406308945566025 08796852120655358489535885153588595358864535886753 58874535890653625205362523