PChat Portable 1.1 is still using PAL beta 3 as a launcher, which had a few bugs concerning secondary-launches and crashes if PortableApps.comLauncherRuntimeData.ini is left behind in the Data folder.
Another thing, is it intended that if secondary-launched, PChat launches a second instance instead of just focusing the current instance of PChat?
This should be fixed in the latest revision, the launcher has been updated to use the latest release of PAL and the other bug about the launcher crashing I believe was a bug of beta 3 not PChat itself
your friendly neighbourhood moderator Zach Thibeau