安装时显示与vista系统有兼容问题，安装后每次运行都会提示
在微软网站上下了sp1和vista update
但是安装时显示"The upgrade patch cannot be installed by the Windows
Installer service because the program to be upgraded may be missing, or the
upgrade patch may update a different version of the program. Verify that the
program to be upgraded exists on your computer and that you have the
correct upgrade patch."
按release notes里的指示卸载了sp1 beta
但是安装sp1时仍然显示上面的错误
请问应该如何处理？
