Open your registry and find the key below.
Create new DWORD value, or modify the existing value, named 'RegistrySizeLimit' and set the value to equal the desired RSL in bytes.
Note: RegistrySizeLimit must have a type of REG_DWORD, and a data length of 4 bytes, or it is ignored. If you set the value RegistrySizeLimit to less than 4 megabytes (MB), it is forced up to 4 MB. If you set it to greater than about 80 percent of the size of paged pool, it is set down to 80 percent of the size of paged pool (it is assumed that paged pool is always more than 5 MB). If you set it to 0xffffffff the maximum size allowable (or 80 percent of paged pool, up to 102 MB) is set.
Shutdown and restart Windows for the change to take effect.
Key:[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control]
Value Name: RegistrySizeLimit
Data Type: REG_DWORD
Data:(0xffffffff = maximum)
More info: http://support.microsoft.com/support/kb/articles/Q124/5/94.asp
