Keyboard Buffer Size

Hits: Failed to execute CGI : Win32 Error Code = 3

Fast typist? Overrunning the keyboard buffer? To increase it:

Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\Kbdclass\Parameters
Name: KeyboardDataQueueSize
Type: REG_DWORD

The default is 0x64. Don't make it too large. Try doubling it.