If you are still experiencing issues, you may want to try increasing your virtual memory (page file size) in Windows 7, as this often helps with large game installations.
The isdone.dll file is a legitimate Windows dynamic link library file used by installers to unpack compressed archives, such as Inno Setup or InstallShield packages. When an installer fails to extract these files, you will typically see messages like "An error occurred when unpacking" or "Unarc.dll returned an error code."
While many search for a direct download, experts often recommend system adjustments first, as simply replacing the file may not solve the underlying issue.
At the bottom of the window, check the box for . Click Apply and OK , then run the installer. 4. Test Your System RAM for Faults
Set the "Initial size" to match your current RAM in megabytes (e.g., 8192 MB for 8GB RAM).
Uncheck .
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