Could not load file or assembly 'Microsoft.SqlServer.Replication, Version=10.0.0.0, Culture=neutral,...

Hi all,
 
i am installing my .net windows application in windows 7. application installed sucessfully,
 
i have installed framework and Replication component. but when i logon my window application, then below exception is raise,
(Problem is coming only in windows 7 machine not in in other machine)
 
Could not load file or assembly 'Microsoft.SqlServer.Replication, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. An attempt was made to load a program with an incorrect format.
 
Can any one help me, why does this problem coming?
 
for more discussion look at below link:
 
http://social.msdn.microsoft.com/Forums/en-US/sqlsetupandupgrade/thread/2558084e-cfa7-4cea-a1fc-83ac3ab3b7eb