执行excel.application.workbooks.open时，总是处于页面正在打开状态

[chuangway]

在asp.net中操作excel的代码：
Excel.Application exec = new Excel.ApplicationClass();
string filename = Server.MapPath("../1.xls");
exec.Application.Workbooks.Open(filename, Missing.Value, Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value);
excel.Visible = true;
执行到excel.application.workbooks.open时，总是处于页面正在打开状态。也未返回任何错误信息。而这段代码在别的机子上是可以运行的。那位大虾能够帮帮我，项目要交差，急救！重谢！！

开发环境：vs2003。winxp sp2。COM引用，excel权限都已设置。

[Small__Wolf]

Object refmissing = System.Reflection.Missing.Value;
Excel._Application exc = new Excel.ApplicationClass();
exc.Visible = false;
Excel.Workbooks workbooks = exc.Workbooks;
workbooks._Open(filename,refmissing,refmissing,refmissing,refmissing,refmissing,refmissing,refmissing,refmissing,refmissing,refmissing,refmissing,refmissing);