Trying to fix my crashes in X3, Cakewalk Tech guys suggested I remove all C++ iterations and reinstall them, which I did. But now my Pro Channel strip is messed up. I get "load failure" text at the bottom of the strip, previously saved projects are missing the U76 comp and when I try to add anything to the strip I get instant crash. I have both the 32 and 64bit installed. The channel strip appears to be normal in 32bit but is messed up on 64 which is the version I prefer to work in. Any ideas?

 
Have you reinstalled X3 ?  That's what I'd do before anything else.  Sounds to me like you may be missing a library.
 

Yep, resintalled everything, rebooted, still have the same errors...
 

 
Is what you refer to as 'U76' the PC76 Prochannel compressor ?
 
If so, do you have "PCS-NukeCM.dll" in   "[your Cakewalk folder]\Shared Utilities\Internal"  ?
 
Your problem sounds like more than just a missing PC plugin, but its absence may indicate a bad reinstallation.
 

Yep that's the one, the main compressor loaded by default. I downloaded all the installation files from my account from the website.
 

dbmm001
Yep that's the one, the main compressor loaded by default. I downloaded all the installation files from my account from the website.

But is the dll present ?  Sorry to repeat, it's just that if I found a plugin to be missing in a project I'd first check to see if it was where it was supposed to be on disk.
 

sounds like it's dependent on one of the C++ distros you uninstalled?

Won't be back at the studio till later, I'll look for the missing .dll, I may have to download the multiple C++'s again and try reinstalling...
 

Well I have PCS-NukeCM.dll where it's supposed to be. Tried reinstalling again, and am getting permission errors when it's wrapping up. It can't register plugins, i.e. "unable to register DLL/OCX: RegSvr32 failed with exit code 0x3." I tried googling that error and tried all the suggested solutions, including some on this forum to no avail. Here we go again, spending hours and hours diagnosing software problems instead of making music......really, really, frustrated and tired of this...

Contact support. It really sounds like this issue relates to a 64-bit program and OS trying to deal with 32-bit plug-ins. Support can probably make sure you have correct install paths and such so that when running 64 bit, SONAR finds the 64-bit plugs and when running 32-bit, SONAR finds the 32-bit plugs.
 
I highly, highly recommend running 64-bit programs and plug-ins in a 64-bit environment, use 64-bit plug-ins as much as possible, and if you have to use 32-bit plug-ins, do so by bridging within a 64-bit environment.