Ultimate Solution for installation failure / service create failed

[npk48]

I have no idea why the problem still exist since I first met it a year ago. Just for convenience, anyone who is having this issue can try the manual install approach below.

1. unzip the installer you got from site
2. make sure you have NPFInstall.exe , npcap.inf/sys, npcap_wfp.ini in the same folder
3. execute the following in an elevated command prompt
4. NPFInstall.exe -i
5. NPFInstall.exe -iw
6. then run the npcap_installer.exe as normal
7. copy npcap.sys to your system32/drivers folder
8. net start npcap in an elevated command prompt
9. enjoy wireshark

[urbanhusky]

The installer contains multiple duplicates of various files. How can I pick the right ones?

I solved it another way, I'll reply with the solution for my special case to another thread as well: I am working remotely via citrix and that was causing my problems. I was able to install it when I didn't connect to my dev machine at work via citrix, but instead made the connection to a different machine and then used remote desktop to control my machine. The installation works fine when it's run from a remote desktop connection, but not when it's run from a citrix one.