"There is a problem with this window installer package. A script required for this install to complete could not be run."

This information applies to version(s): 1, 2, 3, 4, 5

Please proceed as follows:
1. Click Start> Programs> Accessories.
2. Right-click on Command Prompt, select "Run as administrator".
3. If you get C: \ Windows \ SysWow64>, go to step 4. Otherwise, enter the following text, including the quotation marks, and press Enter:
cd "% systemroot% \ SysWow64"

4. Then type regsvr32 jscript.dll and press the Enter key.
Then try reinstalling DxO PhotoLab