Export to excel problem In VS2010

Question

I have made one application in Visual Studio 2005 and its working successfully from last 3 years.
Now i convert that into Visual Studio 2010 and its converted successfully. I make publish copy and install that application on client machine, But When i export my data to excel from datagridview its giving me error and also when i open any report in crystal report in runtime it also giving me error.

can anybody help me ?

these  two problems working properly in VS2005

For these problem I install
1) SAP Crystal report runtime engine for .Net Framework 4.0.
2) Microsoft Visual Studio 2010 tools for office runtime(x86 & x64).
3) Microsoft Visual Studio 2010 Report Viewer.
4) Microsoft Office 2007 Primary Interop Assembly.

But still m getting error.

please help me