日前安裝 Expression Blend 2 SP1 時出現錯誤訊息:
Expression Blend 2 Service Pack 1 may have failed to install. Windows installer returned Error code 1605

原因為系統上還裝著 Microsoft Expression Blend 2.5 June 2008 Preview 產品,無法直接更新SP1。
如有出現該錯誤訊息,解決方案如下:
1) 移除 Microsoft Expression Blend 2.5 June 2008 Preview
2) 安裝 Microsoft Expression Blend™ 2 Trial
3) 安裝 Microsoft Expression Blend™ 2 Service Pack 1
這樣即可成功安裝 Expression Blend 2 SP1。

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