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I tried to upgrade VirtualBox. Installing VirtualBox is OK but I have a problem with Extension Pack. Here is error.

Failed to install the Extension Pack C:/Users/.../Downloads/Oracle_VM_VirtualBox_Extension_Pack-4.1.4-74291.vbox-extpack.

Failed to launch the helper application 'C:\Program Files\Oracle\VirtualBox/VBoxExtPackHelperApp.exe' (VERR_UNRESOLVED_ERROR).

Result Code: VBOX_E_IPRT_ERROR (0x80BB0005)
Component: ExtPackManager
Interface: IExtPackManager {3295e6ce-b051-47b2-9514-2c588bfe7554}

Sidenote: Windows 7

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migrated from stackoverflow.com Oct 4 '11 at 6:02

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2 Answers

up vote 1 down vote accepted
  • Open a command prompt as Administrator : Right-click on “Accessories\Command Prompt” and choose : Run As Administrator.
  • CD C:\Program Files\Oracle\VirtualBox
  • Make sure the ExtensionPack is located in the same directory
  • C:\Program Files\Oracle\VirtualBox>VBoxManage.exe extpack install Oracle_VM_Virt ualBox_Extension_Pack-4.0.4-70112.vbox-extpack

C:\Program Files\Oracle\VirtualBox>VBoxManage.exe extpack install Oracle_VM_VirtualBox_Extension_Pack-4.0.4-70112.vbox-extpack 0%…10%…20%…30%…40%…50%…60%…70%…80%…90%…100% Successfully installed “Oracle VM VirtualBox Extension Pack”.

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+1 that's work. Thanks. –  1888 Oct 6 '11 at 1:41
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@shaduabhi's suggestion didn't work for me; it just hung. I was experiencing the same error, and fixed it by copying the Oracle_VM_VirtualBox_Extension_Pack-4.1.4-74291.vbox-extpack file from the network share it was on to a local folder, then opening it.

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