How do I resolve the error message "A required .dll OLEACC.dll was not found" when starting TurboTax?
http://support.turbotax.com/kb/ViewDocument.asp?documentId=1015&categoryId€068

-Insert the TurboTax CD into your computer's CD-ROM drive. If prompted to install TurboTax, click Quit.
-From the Windows taskbar, click Start and choose Run.
-Click the Browse button.
-From the Look In drop-down list, select the CD drive containing your TurboTax CD (usually Drive D or E).
-Double-click the IE folder, and then double-click the file msaardk.exe (you may need to scroll down to see this file).
-In the Run window, click OK, and then click Yes at the message "Would you like to continue?"
-Follow the onscreen instructions to finish installing Active Accessibility.
-(Recommended) Reinstall TurboTax by following the instructions on the QuickStart card included with TurboTax.