New install scenery does not recognize P3D V4

[walouigi]

Hi there,
I have removed all my FST scenery and also bought new one's from your sale for KCLT and others.
Trying to install all FSDT from scratch on a new install for all FSX, P3D V3 and V4. The install program recognize FSX, P3D V3 only, not recognizing the P3D v4, the same for all the other scenery do not recognize the P3D V4 installation, and I cannot install any of them.
Please advise why, and how can I fix that.
Thanks

[walouigi]

Hi,
I have reinstalled P3D from scratch and now it is working, I guess it was installed wrongly.
Thanks

[virtuali]

It seems that you must run P3D at least once, otherwise not all registry entries will be created, so our installers won't find it.