So far I have not used QC on Windows 7 till my test coordinator contacted me with this problem.
I am very much thankful to test coordinator who make me to look into this issue as I made my hands dirty with both windows 7 installation and QC trail version on personal laptop first before I provided the solution to customer.
The problem seems the general and frequent for all QC Administrators works on XP.
Well I do not want to talk much on this. Lets jump into problem directly
Here is the problem I am listing for you :
Following client components were not downloaded successfully:
1 . ExtensibilityAPI.dll :
(Error 5)
Failed to open file for writing
2 . OTAClient.dll :
(Error 5)
Failed to open file for writing
3 . WebClient.dll :
(Error 5)
Failed to open file for writing
4 . QCClientUI.ocx :
(Error 5)
Failed to open file for writing
5 . wexectrl.exe :
(Error 5)
Failed to open file for writing
6 . XGO.ocx :
(Error 5)
Failed to open file for writing
7 . OTAXml.dll :
(Error 5)
Failed to open file for writing
8 . OtaReport.dll :
(Error 5)
Failed to open file for writing
9 . SRunner.ocx :
(Error 5)
Failed to open file for writing
10 . TdComandProtocol.exe :
(Error 5)
Failed to open file for writing
11 . sr_exec_agnt.exe :
(Error 5)
Failed to open file for writing
12 . MercResourceLogger.dll :
(Error 5)
Failed to open file for writing
13 . bp_exec_agent.exe :
(Error 5)
Failed to open file for writing
14 . Free_MSR_Player.exe :
(Error 5)
Failed to open file for writing
15 . dsoframer.ocx :
(Error 5)
Failed to open file for writing
16 . VugenTestType.dll :
(Error 5)
Failed to open file for writing
17 . QCClient.UI.Customization.dll :
(Error 5)
Failed to open file for writing
18 . QCClient.UI.Components.BPT.TPC.dll :
(Error 5)
Failed to open file for writing
19 . BuiltInPlugin.dll :
(Error 5)
Failed to open file for writing
20 . ReportViewerForTD.dll :
(Error 5)
Failed to open file for writing
21 . QTGrid.dll :
(Error 5)
Failed to open file for writing
22 . ArgsEditor.dll :
(Error 5)
Failed to open file for writing
23 . Arguments.dll :
(Error 5)
Failed to open file for writing
24 . ConfigViewerForTD.dll :
(Error 5)
Failed to open file for writing
25 . ExGrid.dll :
(Error 5)
Failed to open file for writing
26 . CompStrgHelper.dll :
(Error 5)
Failed to open file for writing
27 . BuiltInScriptView.dll :
(Error 5)
Failed to open file for writing
28 . QAIAd.dll :
(Error 5)
Failed to open file for writing
29 . WITestType.dll :
(Error 5)
Failed to open file for writing
30 . ExtensibilityAPI.dll :
Cannot load type library
31 . ExtensibilityAPI.dll :
(Error 1008) Es wurde versucht, auf ein Token zuzugreifen, das nicht vorhanden ist.
Cannot register type library
32 . OTAClient.dll :
Cannot load type library
33 . OTAClient.dll :
(Error 1008) Es wurde versucht, auf ein Token zuzugreifen, das nicht vorhanden ist.
Cannot register type library
34 . WebClient.dll :
Cannot load type library
35 . WebClient.dll :
(Error 1008) Es wurde versucht, auf ein Token zuzugreifen, das nicht vorhanden ist.
Cannot register type library
Solution:
in fact I got the partial solution to this from HP forums on QC and rest I dig out on my own.
I am listing the step by step procedure for you here to make it resolved
“Using QC with Win 7 "
Windows 7.0 includes many new security features to prevent users from accidentally damaging the windows installation. This in turn will prevent QC from being able to install properly. It is important to understand that in Windows 7, a standard user with administrator privileges is not equal to the built in administrator user.
Here you can Follow the instructions below to get QCclient to work with win7.
1. Ensure that User control accounts setting is disabled.
 a. in the Windows globe>search for program and files> type UAC
 b. click on the link to bring up the UAC.
 c. Move the slider down to never notify.
 d. Restart the computer.
2. Disable Data Execution prevention (DEP)
 a. In the Windows globe>search for program and files > type CMD
 b. Right click on the link and run as administrator.
 c. In the command prompt type,
Code:
________________________________________
bcdedit /set {current} nx AlwaysOff
________________________________________
 d. Restart the computer.
2. Launch IE and connect to Quality Center and should be able to work within QC.
3 Change the user control accounts setting back to the original setting and restart.
P.S. If you ran into other problems with QC with Windows 7, I strongly recommend you to look into this discussion thread
