delete replication using script - replication

Question

im using sql server 2012 and replication process in it. now the replication process is working correctly, but i want to delete this replication, i mean all the publications, subscriptions and articles through script. i went through this site http://support.microsoft.com/kb/324401 and tried the following script
:setvar PublisherDatabase "AdventureWorks2012"
:setvar SubscriberServer "HYDHTC0131320D\MSSQLSERVER2"
use [$(PublisherDatabase)]
--Drop all subscriptions
exec sp_dropsubscription
#publication = N'TestPubs',
#article = N'all',
--#subscriber = [$(SubscriberServer)]
#subscriber = N'all',
#destination_db = N'all'
--Drop publication
if exists (Select 1 From SysPublications where name = N'TestPubs')
EXEC sp_droppublication #publication = N'TestPubs'
EXEC sp_replicationdboption #dbname = [$(PublisherDatabase)], #optname = N'publish', #value = N'false'
--Drop subscriber entry
EXEC sp_dropsubscriber #subscriber = [$(SubscriberServer)]
--Drop distributor
EXEC sp_dropdistributor #no_checks = 1
after i execute the above script, im getting the following error.
Only one Log Reader Agent or log-related procedure (sp_repldone, sp_replcmds, and sp_replshowcmds) can connect to a database at a time. If you executed a log-related procedure, drop the connection over which the procedure was executed or execute sp_replflush over that connection before starting the Log Reader Agent or executing another log-related procedure.
Msg 18752, Level 16, State 1, Procedure sp_replcmds, Line 1
Only one Log Reader Agent or log-related procedure (sp_repldone, sp_replcmds, and sp_replshowcmds) can connect to a database at a time. If you executed a log-related procedure, drop the connection over which the procedure was executed or execute sp_replflush over that connection before starting the Log Reader Agent or executing another log-related procedure.
The Subscriber was dropped.
Msg 20015, Level 16, State 1, Procedure
sp_MSreplremoveuncdir, Line 83
Could not remove directory 'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\ReplData\unc\HYDHTC0131320D_ADVENTUREWORKS2012_TESTPUBS\20120719152739\'. Check the security context of xp_cmdshell and close other processes that may be accessing the directory.
check this screenshot for more details
can anyone help me in solving these issues

Answer 1

It looks like you had some errors when dropping replication and have some orphaned subscription metadata at teh Subscriber. Orphaned metadata can be removed from the subscription database using sp_removedbreplication.
For future reference, you can remove all subscriptions, publications, and disable publishing and distribution following these steps:
Delete a Push Subscription
How to: Delete a Publication
Disabling Publishing and Distribution
Relevant bits of code from the links
a) To drop a push subscription on transactional replication
-- This batch is executed at the Publisher to remove
-- a pull or push subscription to a transactional publication.
DECLARE #publication AS sysname;
DECLARE #subscriber AS sysname;
SET #publication = N'AdvWorksProductTran';
SET #subscriber = $(SubServer);
USE [AdventureWorks2012]
EXEC sp_dropsubscription
#publication = #publication,
#article = N'all',
#subscriber = #subscriber;
GO
b) To drop a subscription on a merge replication
DECLARE #publication AS sysname;
DECLARE #subscriber AS sysname;
DECLARE #subscriptionDB AS sysname;
SET #publication = N'AdvWorksSalesOrdersMerge';
SET #subscriber = $(SubServer);
SET #subscriptionDB = N'AdventureWorks2012Replica';
USE [AdventureWorks2012]
EXEC sp_dropmergesubscription
#publication = #publication,
#subscriber = #subscriber,
#subscriber_db = #subscriptionDB;
GO
c) To drop a publication and set a source DB to stop being a publisher, on a transactional replication.
DECLARE #publicationDB AS sysname;
DECLARE #publication AS sysname;
SET #publicationDB = N'AdventureWorks2008R2';
SET #publication = N'AdvWorksProductTran';
-- Remove a transactional publication.
USE [AdventureWorks2008R2]
EXEC sp_droppublication #publication = #publication;
-- Remove replication objects from the database.
USE [master]
EXEC sp_replicationdboption
#dbname = #publicationDB,
#optname = N'publish',
#value = N'false';
GO
d) To drop a publication and set a source DB to stop being a publisher, on a merge replication.
DECLARE #publication AS sysname
DECLARE #publicationDB AS sysname
SET #publication = N'AdvWorksSalesOrdersMerge'
SET #publicationDB = N'AdventureWorks2008R2'
-- Remove the merge publication.
USE [AdventureWorks2008R2]
EXEC sp_dropmergepublication #publication = #publication;
-- Remove replication objects from the database.
USE master
EXEC sp_replicationdboption
#dbname = #publicationDB,
#optname = N'merge publish',
#value = N'false'
GO

Answer 2

My workaround is to do sp_droppublication in a transaction.
-- local variables
declare
#return_code int -- return code of sp
,#dependent_publ sysname -- publication dependent on replicated RDZ tables
declare a cursor for
select distinct p.name from syspublications p
inner join sysarticles s on p.pubid = s.pubid
inner join adm_replicated_rdz_tables r on r.table_name = s.name
if exists
(select * from sys.objects
where object_id = object_id('[dbo].[sysarticles]') and type in ('U'))
begin
open a; fetch next from a into #dependent_publ; while ##fetch_status = 0
begin
begin transaction
print #dependent_publ
execute sp_droppublication #dependent_publ;
commit
fetch next from a into #dependent_publ;
end; close a; deallocate a;
end