Cannot reinstall SAP Business One 32 Bit Client program

Question

Hi Everyone,
I started with a computer which had SAP Business One Clients (32 & 64 Bit versions) installed, along with the DTW (Data Transfer Workbench). I have since uninstalled both Business One clients, and am now wanting to reinstall the 32 Bit Client (only).
When I double click on the Setup.exe file I am presented with the message below -
I don't understand why I am presented with this message given that I have uninstalled the software.
In addition to uninstalling the software through the Windows (7) Control Panel, I have also manually deleted all files and folders related to Business One (using a Windows Search), with the exception of those files related to the DTW, and finally deleted all TEMP files.
If I click on Cancel the setup stops, but if I click on OK I see the following -
When I click on OK, above, I see the following -
What can I do now to fully remove all traces of the previous Client installations so that I can reinstall the 32 Bit Client?
Any advice will be greatly appreciated.
Kind Regards,
David

Answer 1

Hi Everyone,
Firstly I now have an 'S-User ID', so I have access to SAP Resources.
Secondly, thank you Sridharan for posting the information to this thread, it is a great help (particularly given that I wasn't sure how long it would take my provider to organise an S-User ID).
Thirdly; these are the actions I have taken - none have helped!
Attempted installation in the 'hidden' Windows Administrator account
http://www.howtogeek.com/howto/windows-vista/enable-the-hidden-administrator-account-on-windows-vista/
THE FOLLOWING COME FROM THE OFFICIAL SAP 'FIX' (as shown above in Sridharan's post)
1). Tried both points, a), and b), in the InstallShield link -
http://consumerdocs.installshield.com/selfservice/viewContent.do?externalId=Q108474&sliceId=1
However I could not proceed with point 3), because by my reckoning the SAP Business One Client that I am using relies upon Installshield 17 (and there is no link available for this version!).
If I am incorrect about the above can somebody please let me know which version of Installshield was used, and I will then return to point c) of the Installshield 'Q108474' link.
2). Microsoft C++ 2005 is not installed on the computer.
3). Registry entries did not exist, and I am going to assume where removed when I performed a registry clean with Registry Mechanic (before posting this thread).
I have downloaded a trial version of Installshield Enterprise, and I am hopeful that it will contain a version 17 driver file, in which case I will return to 'Q108474'.
In the meantime however if anybody has any further suggestions can you please post?
I really don't want to reinstall Windows just because one program will not load.
Kind Regards,
David