The best replacement for pcanywhere is gotomypc.

The best alternatives to pcanywhere are rated as following:
★★★★★  gotomypc
★★★★  vnc
★★★  remote desktop
★★  vpn
★★  radmin
★★  logmein
★  teamviewer
★  dameware
★  realvnc
★  bomgar
  citrix
  terminal services
  laplink
  go to my pc

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Speaking about pcanywhere, one probably shouldn't forget about dynamic ip.

Other search terms related to pcanywhere and their ratings are:
★★★★★ dynamic ip
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