fix pid detection on windows

aqt/profiles.py

@@ -97,6 +97,12 @@ documentation for information on using a flash drive.""")
         if os.path.exists(p):
             pid = int(open(p).read())
             exists = False
+            if isWin:
+                # no posix on windows, sigh
+                from win32process import EnumProcesses as enum
+                if pid in enum():
+                    exists = True
+            else:
                 try:
                     os.kill(pid, 0)
                     exists = True