You can try installing the VCam directly by using either InstallVCam32.exe or InstallVCam64.exe that are in the c:\Program Files\RoboRealm folder.
1. Try right clicking on those and select "Run As Administrator" since they install kernel drivers and need admin rights to do so.
2. Watch the bit type. If you are running on a 64 bit machine, try using the corresponding 32 or 64 file.
3. Try this with RR exited just in case its the app that's holding the connection!
4. You can also try going to your Device Manager and removing all current (perhaps badly installed) VCam drivers by removing them before attempting a reinstall.
Hopefully that should do it!
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