Configuring http access to analysis services 2008 r2

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ASP.NET

SQL

IIS

server

Hi,
I would like configure http access to analysis service.
for that i have copied msmdpump.dll,msmdpump.ini and resources folder into wwwroot/Olap folder.
created virtual directory for olap folder and has given anonymous authentication.
url like has http://ipadress/olap/msmdpump.dll
if the analysis services and iis on computer1(i.e on same computer) it is working fine through sql management studio in computer2
.
if it is two different computers means analysis services in computer1 and iis(virtual directory) in computer2 it gives error.
to overcome this i have modified servername as computer1name\instancename or ip instead of localhost in msmdpump.ini config file even though it gives following error

Cannot connect to http://IPaddress/Olap/msmdpump.dll.

------------------------------
ADDITIONAL INFORMATION:

Errors in the OLE DB provider. An error occurred while named instance information was being retrieved from the SQLBrowser service on the 'computer1' server.
Errors in the OLE DB provider. Could not connect to the redirector. Ensure that the SQLBrowser service is running on the 'computer1' server. (Unknown)

Please help me to overcome this problem
thanks in advance.