Hi Caleb,
I understand that you are unable to extract files as archive using 7zip and unable to install DPinst.exe.
1. What is the make and model of the computer?
2. Are you trying to extract the drivers files one by one?
3. Where are you trying to install DPinst.exe?
The files may have been compressed in a format Windows cannot deal with and hence you are facing this issue. It might also happen when that file is corrupted, incomplete, or may require a password.
I suggest you to refer to the following article and check if it helps.
Frequently Asked Questions (FAQ)
http://www.7-zip.org/faq.html
7-Zip
http://www.7-zip.org/
I suggest you to place the computer in clean boot and check if you are unable to install DPinst.exe on the computer.
Method 1:
I suggest you to place the computer in clean boot and check for any software conflicts. You can perform the following troubleshooting steps and check if it helps.
You may follow the article mentioned to perform a clean boot.
Perform a Clean Boot
Follow the instructions (Step 1 for Windows 8) given in this link to perform a clean boot:
http://support.microsoft.com/kb/929135
Note: After performing the troubleshooting steps in clean boot, follow these steps to return the computer to Normal startup mode.
a) Press the ‘Windows + R’ key on the keyboard.
b) In the ‘Run’ windows type ’MSCONFIG’ and click ‘Ok’.
c) On the General tab, click the Normal Startup option, and then click ok.
d) When you are prompted to restart the computer, click Restart.
You can also refer to the following article for more information.
Driver Package Installer (DPInst)
http://msdn.microsoft.com/en-us/library/ff544842.aspx
dpinst.exe64 bit
http://social.technet.microsoft.com/Forums/windows/en-US/0c50fba0-f4ee-4ced-ab91-dc975e09b4f5/dpinstexe64-bit
If the issue persists, I suggest you to download the driver once again from the computer bank manufacturer website.
Hope this resolves the issue. If the issue persists or if you face any Windows issues in future, let us know and we would be glad to assist you.
