This problem has been torturing me for the whole afternoon and after searching on the web for a long time, I finally get this problem fixed.

Thanks to this post:http://social.msdn.microsoft.com/Forums/zh-CN/vstudiozhchs/thread/fce3b79d-fa19-49d9-8526-3665e834e614/

At first my PC was installed with visual studio 2005 Japanese version, but as I cannot read japanese, I have big trouble in debugging and developing. So I decided to install the VS2005 Simplified Chinese version. After spending a long time downloading and uncompressing and installing visual studio professional simplified Chinese version, I found out that my newly installed visual studio are always hanging after I double clicked the VS2005 icon.

And I tried the following operations:

1.install vs2005 sp1 pack, but for my japanese version vs2005, it has no sp1 package installed by it is fine.

2.install another hotfix package "Visual Studio 2005 Service Pack 1 Update for Windows Vista"(http://www.microsoft.com/en-us/download/details.aspx?id=7524), and after installing this package, vs2005 still fails

3.Then I found this post http://social.msdn.microsoft.com/Forums/zh-CN/vstudiozhchs/thread/fce3b79d-fa19-49d9-8526-3665e834e614/

4.Thanks a lot to ChiYau(MVP), by trying his method, I succeeded in starting my visual studio 2005 Simplified Chinese version.

5.Just "Start"->"All programs"->"Microsoft Visual Studio 2005"->"Visual Studio Tools"->Right click"Visual Studio Command Prompt" and choose to run as Administrator

6.In the administrator console window, use "devenv /resetsettings" to reset all settings of visual studio.

Analysis: as to my case, the computer environment is very complex and I could not tell clearly which program results in this hanging of visual studio 2005 professional Simplified Chinese version. So I am afraid I have no idea about the cause.

And I copied the original blog content here in order to prevent possible content failure some day

在網上有很多朋友都在說..他們的Visual Studio 升級後出現問題
有很多時候時因為升級時舊的Visual Studio 有些Visual Studio 2010 不支援的Adds-on/Plugin 所以造成的. 或者有時侯 Visual Studio 的設定檔亂了.. 所以出現問題.

當有大至相同的問題出現時.. 可以嘗試做以下的步驟

解決方法:
按 “開始/Start Menu” -> “所有程式集/All Programs” -> “Microsoft Visual Studio 2010” -> “Visual Studio 工具 / Visual Studio Tools”
Right Click “Visual Studio 命令行 (2010) / Visual Studio Command Prompt (2010)”
之後選擇”以管理員身份執行 / Run as Administrator”

之後可以執行以下的指令
#將所有活動記錄至記錄檔中，以進行疑難排解。
devenv /log
#%APPDATA%\Roaming\Microsoft\VisualStudio\\ActivityLog.xml。
#其中 是 Visual Studio 版本。
詳情可以參考以下URL
http://msdn.microsoft.com/zh-tw/library/ms241272.aspx

#還原 Visual Studio 的預設值
devenv /resetsettings
詳情可以參考以下URL
http://msdn.microsoft.com/zh-tw/library/ms241273.aspx

#清除所有選項，以略過使用者加入至 VSPackage 的載入作業 (若使用者不希望載入有問題的 VSPackage)，然後啟動 Visual Studio。
#若出現 SkipLoading 標記則會停用 VSPackage 的載入作業，而清除該標記則會重新啟用 VSPackage 的載入作業。
Devenv /ResetSkipPkgs
詳情可以參考以下URL
http://msdn.microsoft.com/zh-tw/library/ms241276.aspx

#在安全模式 (Safe Mode) 中啟動 Visual Studio，只載入預設的環境和服務。
#這個參數可在 Visual Studio 啟動時，阻止載入所有協力廠商的 VSPackage，以確保穩定執行。
devenv /SafeMode
詳情可以參考以下URL
http://msdn.microsoft.com/zh-tw/library/ms241278.aspx

如果還是有問題的話
可以嘗試”重新啟動電腦”..”進入安全模式“, 這樣可以排除是 第三方程式 或 驅動程式的影響 ..之後再執行Visual Studio
或是建立新的電腦用戶試試是不是 User Profile的問題

以下是其中一些已經知道能用以上放法解決的問題 

1.
“QueryService for ‘{74946829-37A0-11D2-00C04F8EF4FF}’ failed.’
‘針對”｛74946829-37A0-11D2-00C04F8EF4FF｝”的QueryService 失敗’”