I have an application that has been running fine from mapped drives for years. For some reason, I can not run the application from a mapped drive any more BUT IT WILL RUN from the drive if I use the full UNC path. It will run from C drive fine but it will not run if I share the folder on C drive and map a letter to it. The event log shows Exception code: 0xc0000005 (access violation) every time I try to run the application from a mapped drive letter.
I have run Webroot AV scans and I have tested with AV shut down. I have tested with firewall shut down. I have run Malwarebytes and Spybot scans. I have run CCleaner. I have played with permissions and run as admin. I created a new user profile and tested - which worked for a day but now all profiles have the same behavior.
I am running Windows 7 Ultimate - 64 bit with 32mb ram. The application is a 32 bit app and known to be stable. This problem is not happening on other machines.
Any help will be greatly appreciated.
Thanks in advance.