qtgui4.dll is missing when i try and run ZdooM

First thing we need to do is open an elevated command prompt.
To do this, right click on the Windows logo (the old start button), then select command prompt (admin)
Type the following at the command prompt: regsvr32 qtgui4.dll (note the space) and press Enter. You should get a confirmation box. Click OK and try the program again.
 

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