With proper recognition to this web page where I found the answer and it worked
http://research.gerger.com/?view=lab:en&aID=1006Step 1: Vista's User Account Control (UAC) must be disabled for these steps to work (Control Panel -> Turn User Account Control Off). You may enable UAC back on after these steps. And you should run this as admin.
Step 2: Download subinacl.msi from Microsoft and install it.
Step 3: Download my modified version of reset.cmd from here and save the file in 'C:\Program Files\Windows Resource Kits\Tools'.
for Vista 64-bit: to 'C:\Program Files (X86)\Windows Resource Kits\Tools'
Step 4: Open Command Prompt (press the Windows Start button and type CMD) and type the following without quotes (hit Enter):
'cd c:\program files\windows resource kits\tools'
for Vista 64-bit: 'cd c:\program files (X86)\windows resource kits\tools'
Step 5: Now type 'reset.cmd' and hit Enter (without quotes)
You will see the Command Line Tool running for some seconds. The issue should have been fixed and Quicktime should run again.