Windows7 and NAS

I have an issue I cannot resolve. I just installed Windows 7 on one of our computers and everything went great. I can connect to all my network drives and my NAS but when I try and run an application file I get an error “The parameter is incorrect.” I can copy this folder to my local drive or my servers share drive and it will run fine. I cannot figure out why I can see everything but I cannot run an application, I can open text files fine. I believe it is related to security settings in Windows 7 but cannot figure out where.

Any help would be great.
Thanks Kevin

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