Encounter shared memory error when running createlang command!

Hi, List,

Because my previous mail contains some Chinese character, now I modified
it, the whole problem is described as below:

I need to create language Pl/Perl. I have checked all dependencies of
plperl.dll and all is ok.

Next:

D:\Program Files\Postgresql\bin>createlang -U postgres -e plperl example
(example is my dbname)

Password:

SELECT oid FROM pg_catalog.pg_language WHERE lanname = 'plperl';

CREATE LANGUAGE "plperl";

createlang: language installation failed: server closed the connection
unexpectedly

This probably means the server terminated abnormally

before or while processing the request.

And pg_log is :

2009-09-24 10:50:55 HKT LOG: loaded library
"$libdir/plugins/plugin_debugger.dll"

2009-09-24 10:50:59 HKT LOG: loaded library
"$libdir/plugins/plugin_debugger.dll"

Substitution pattern not terminated at line 1.

2009-09-24 10:51:01 HKT LOG: Server process (PID 1640) exited, exit code
255

2009-09-24 10:51:01 HKT LOG: terminating any other active server processes

2009-09-24 10:51:01 HKT LOG: all server processes terminated;
reinitializing

2009-09-24 10:51:02 HKT FATAL: pre-existing shared memory block is still in
use

2009-09-24 10:51:02 HKT HINT: Check if there are any old server processes
still running, and terminate them.

Then unsurprised, I found pgsql-8.3 service has stopped. But then I can
start up it successfully.

Thank you for any advice in advance.

I have been kept on it for two days..

BR

Lucy Gu