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It appears that the setup prog cannot create or write in a temporary folder. All so called "Primer files" - the PovRAY setup file is among them - will be extracted from the setup executable to the setup executable's temporary directory before the installation process begins so they can be used at the very start of the installation process, right after the user runs the setup executable.

All these file couldn't be found in your C:\Users\ADMINI~1\AppData\Local\Temp\_ir_sf_temp_0\ directory at a later point. I have no clues why this has happened. My guessing is that it is bound to access rights. Anyway you can force the setup executable to use an alternate directory. Find below an extract from the installer help file:


/T:<<file path>>
Every setup executable requires some temporary space on the user's hard drive during the installation process. By default, Setup Factory uses the user's TEMP directory for extracting temporary files and other miscellaneous operations. You can force the setup executable to use an alternate directory by using the /T command line option.

The syntax for the /T option is:

/T:<<file path>>

Replace "<<file path>>" with the path to the folder you want the setup executable to use for its temporary files. (Be sure to put quotes around the entire argument if the path includes any spaces.) If the folder doesn't already exist on the user's system, it will be created automatically.

For example:

"C:\Downloads\setup.exe" "/T:C:\My Temp Dir"

(forces the installer to use "C:\My Temp Dir" for temporary files)


Bye, w.
Hi Willy

sorry for the long delay.
I have finally gotten arround to test your solution.
It still comes up with the error: the file could not be found.
I have logged in as the local administrator and i have set the parameter to T:C:\temp\udpakket.
And the folder has full access rights.

When the installation started I looked in the folder and there was a lot of files there.
among those was the POVRay installer. But when the installation starts it deletes all but two files:
irsetup.exe and lua5.1.dll
then later it complains that it can't find the POVRay installer.

Kind Regards
Do you start the commandline as Admin? And/or do you get an error message while using the parameter?

Hi Max

Yes i started the command prompt as admin.
and no errors when using the /T parameter only later during the install.
It is after installing the DirectX that it deletes all but two of the files in the temp folder.

I use this installer: LDRAW_AIOI_2013_01_setup_32bit_v1.exe
I install logged in as local admin, and it is on Windows 8 Pro.
And i make a full installation

Hi again

I have tryed again to install and this time i did the following:
1. start the installation (full install) with /T C:\temp\udpakket
2. when installation waits for me to proceed i copy all files in folder to a different folder
3. start installation and wait until directx has finished.
4. after directx has finished and while it is installing the next component, copoy all files back.
5. now the installation succedes.

this is really strange behavior - I have to investigate. Thanks for the head-up.

As windows 7 and 8 come with directx 11, would it not make sense to just disable the installation of directx 9?
I have just checked my Windows 8 with dxdiag and it says that directx 11 is installed, so it does not seem that mlcad needs the older version. Or am i mistaking?

I don't think MLCad uses DirectX, but other packages like SR3D do.
I still don't understand why we won't just offer the loose downloads on the download page, like we did on the old site.

I know about the wiki pages but I can't help thinking it belongs on the main site.
Someone has to put the work in to actually get the information up. And that someone isn't going to be me. But the wiki page can easily be brought across to the main site if the information is already there.

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