IIS Issue

[3dgroup]

I am having real trouble with your code on IIS. Test environment works well with apache (xampp windows). But IIS server doesn't want to run the command. I see another threat from a class revolving around WKHTMLTOPDF that has had the same issue with the function proc_open (mikehaertl/phpwkhtmltopdf#56).

I have tried running with system32/cmd.exe and syswow64/cmd.exe with read/exc permissions as a test. Made sure open_baseurl wasn't stopping it running as well.

A full day of debugging has resulted in me seeing Access is denied over and over again!

[3dgroup]

completing the following seems to have fixed it but not sure of the consequences of doing this:

Open Application Pools
Find your pool (by default DefaultAppPool)
Click on "Advanced settings"
Change Identity to "LocalSystem"