I've tried to install sbcl 1.0.43 and 46 on a windows virtual server NT 6.1 amd quad core 64 and get this error message from the os:

Problem signature:
Problem Event Name: APPCRASH
Application Name: sbcl.exe
Application Version:
Application Timestamp: 4ca43314
Fault Module Name: StackHash_89b3
Fault Module Version:
Fault Module Timestamp: 00000000
Exception Code: c0000005
Exception Offset: 223bba75
OS Version: 6.1.7600.
Locale ID: 1033
Additional Information 1: 89b3
Additional Information 2: 89b3e92533427e2da3556602c709d3fa
Additional Information 3: 3b40
Additional Information 4: 3b4018f626b47e5d7fd8567544ccd6a3

... sbcl crashes (freezes) after printing its normal 'welcome' message.
The Exception Code: c0000005 normaly stands for a memory Access Violation, I don't belive that is true in this case.

Any suggestions welcome,

ps.: It is interesting that the multithreaded release sbcl-1.0.45.XIII.252 from Anton Kovalenko works fine.