Describe (offline basemaps? local tile serving? field GIS work?). I can then suggest safe, free, or open-source portable tools that will do the job without exposing you to malware.
Which you are using (e.g., ArcMap 10.8, ArcGIS Pro 3.x)? Portable Basemap Server V3-1-zip %28%28TOP%29%29 download
Portable Basemap Server is a lightweight, open-source Windows application (WPF) that acts as a bridge between online map tile sources and GIS software. It implements ESRI’s "GeoServices REST Specification" and OGC WMTS standards, allowing it to "wrap" sources that aren't natively supported and serve them as standard map services. Primary Use: Describe (offline basemaps
In search results, tags like "((TOP))" or "Full" often appear on third-party file-sharing sites. While PBS is legitimate open-source software, be cautious when downloading from unofficial sources to avoid malware. Authentic Sources: The project has historically been hosted on platforms like GitHub (lagrandecode) CodePlex Archive lagrandecode/Portable-Basemap-Server - GitHub I can then suggest safe, free, or open-source