Hello
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To assist you better, please provide us more information.
a) Are you able to install other programs without any error message?
I would suggest you to unregister and re-register windows installer and check whether it helps. To do so, please follow the steps below:
Unregister Windows Installer, and then reregister Windows Installer. To do this, follow these steps:
- On the "Start" menu, click "Run:.
- In the "Open" box, type "msiexec /unreg", and then press ENTER.
- On the "Start" menu, click "Run".
- In the "Open" box, type "msiexec /regserver", and then press ENTER.
For more information, please refer the link mentioned below:
http://support.microsoft.com/kb/555175
Also you can download and install latest version on windows installer from the link mentioned below:
After you finish all these steps then you can try installing VZAccess Manager Software and check this might fix your issue.
I hope this information helps. Please get back to us if you have any more questions about this issue.
Thanks and Regards
Mir - Microsoft Answers Support Engineer ****Visit our http://social.answers.microsoft.com/Forums/en-US/answersfeedback/threads