話說，要安裝Adobe CS3一直不成功，
因為安裝完成後，試著去執行。
程式就會有安裝有問題，
要我重新安裝。
後來發現 Adobe CS3Clean Script，
似乎Adobe的 uninstall 會不完整，
一旦你之前有安裝過試用版或者其他版本，
都會發生再也無法安裝的問題。
所以你需要去下載Adobe CS3Clean Script，
去乾淨反安裝。
然後再裝Adobe CS3。

PS: 要執行 CS3Clean 之前，
要確定有安裝 Microsoft Installer Cleanup。
http://support.microsoft.com/kb/290301

以下是手動刪除，摘自AdobeCS3CleanReadMe.pdf。

Windows XP:
  a) Go to Start Menu > My Computer
  b) In the Address bar near the top of the window type:
\Documents and Settings\Application Data\Adobe
  c) Delete files and folders with CS3 in the name.
  d) In the Address bar near the top of the window type:
\Documents and Settings\Local Settings\Application Data\Adobe
  e) Delete files and folders with CS3 in the name.
Windows Vista:
  a) Go to Start Menu > Computer
  b) In the Address bar near the top of the window type:
\Users\AppData\Roaming\Adobe
  c) Delete files and folders with CS3 in the name.
  d) In the Address bar near the top of the window type:
\Users\AppData\Local\Adobe
  e) Delete files and folders with CS3 in the name.
Mac OS:
  a) Go to Users/Library/Preferences and delete files and folders with CS3
in the name.
  b) Go to Library/Application Support/Adobe, and delete


參考：
http://kb.adobe.com/selfservice/viewContent.do?externalId=kb401574&sliceId=1#CS3CleanScript
http://www.adobe.com/support/contact/cs3clean.html