Hi everyone!!
On my pc windows 11 I have both adobe acrobat pro and nitro pro enterprise
With drag and drop pdf on my tab sometimes file’s association is one, sometime with other.
Why???

This is not a forum for help with Windows and other third party programs but exclusively for Winstep apps! Warning issued.

Sorry, the problem is on winstep nexus tab!! One pdf file view icon associated with nitro, other one file pdf with acrobat and I don’t explain this!!

You should read the Board Rules and Guidelines before posting and would be wise to do so now. In accordance with these, give details - details, details, details! E.g., which Winstep app and version, exact description of problem, etc.

Hint - the Nexus dock does not have tabs - docks do not have tabs. Only Winstep Workshelf has tabs.

ok, maybe with screenshots I'll explain better.
I have Nexus Ultimate 22.7 and I have enabled a main shelf with 8 tabs.
In one tab there are only links to pdf files but, as you can see, some have a Nitro icon and some have an Acrobat icon.
However they all open with my default pdf reader (Adobe Acrobat). Why?
I would like all files to have the Acrobat icon.
PS. The strange thing I noticed is that they have different properties.

Those screenshots are way too small to tell at least me anything I'm afraid. Also of course, from what I can see, the two properties windows would appear to be I'd guess - also from your user name? - in Italian? Which in any case I really don't know much of, sadly. (I did do our British 'Island Latin' though but by now have long forgotten most of it to my regret, but it wouldn't be much help in this instance anyway.)

Maybe someone else could help out, or Jorge himself perhaps?