The Internal Error 2739 problem can be solved by registering the JScript.dll and VBScript.dll modules in Windows Vista.
Start > Type CMD > Right click on CMD and select Run as Administrator
Change folder by issuing the following command and pressing Enter after each command:
For Windows Vista 32-bit:
For Windows Vista 64-bit:
Type the following command and hit Enter:
Run the installer again.
1 person was helped by this reply
Did this solve your problem?
Sorry this didn't help.