jacob操作word文件报错

Exception in thread "main" com.jacob.com.ComFailException: Can't get object clsid from progid
at com.jacob.com.Dispatch.createInstanceNative(Native Method)
at com.jacob.com.Dispatch.<init>(Dispatch.java:99)
at com.jacob.activeX.ActiveXComponent.<init>(ActiveXComponent.java:58)
at WordBean.<init>(WordBean.java:15)
at JacobTest.insertTableTest(JacobTest.java:38)
at JacobTest.mergeTableCellTest(JacobTest.java:49)
at JacobTest.main(JacobTest.java:62)
代码：
     public WordBean() {
// Open Word if we\'ve not done it already
if (MsWordApp == null) {
MsWordApp = new ActiveXComponent("Word.Application");
}
}public static void insertTableTest() {
WordBean wordBean = new WordBean();
wordBean.setVisible(true); // 是否前台打开word 程序，或者后台运行
wordBean.createNewDocument();// 创建一个新文档
wordBean.setLocation();
wordBean.insertTable("表名", 3, 2);
wordBean.saveFileAs("d:\\table.doc");
wordBean.closeDocument();
wordBean.closeWord();
}Wordjacob