I had a problem today that seems to be an old one - WinPcap won't install because an older version is running - WinPcap install is aborted. I tried the solutions on the old Blog without success. By the way, I run Windows 7, 64 bits.
I also run another program that uses an older version of WinPcap. I uninstalled it but I still ran into the same WinPcap install error. Trying to install WireShark using its own installer would produce the WinPcap-is-already-installed error consistently, in spite of no sign of another WinPcap version.
I solved the problem by running Programs/Wireshark/WinPcap_4_1_3.exe that came with WireShark. It installed properly right away, then I re-booted. Using WinPcap_4_1_3, both my other program and WireShark seem to work OK now.
Bill
