When you try to install a downloaded version of QuickBooks Desktop or a QuickBooks Desktop update, you receive the following message:
qbwebpatch.exe is not a valid win32 application.
This error can occur if:
Solution: Disable the Web Accelerator and download the file again
If the error occurred when attempting to install of a downloaded copy of QuickBooks, download the file again and install it.
If the error occurred when attempting to install a program update, please follow these steps: