Download portable XnView 2.25 & XnViewMP 0.69 32-64 bit Multilingual

Free graphic and photo viewer without installation.
Download Portable XnViewMP 32-64 Online (0.3 MB)
Download Portable XnView Full Online (0.3 MB)
Download Portable XnView Standard Online (0.3 MB)
Extract and run XnViewMPPortable or XnViewPortable.
Edit XnViewMPPortable.ini to set Cache:
Cache=Temp Cache set in Temp folder deleted when lving
Cache=Portable Cache set in Data

Settings of installed XnView should be preserved.