The purpose of symbolic links is to aid in the migration and compatibility with UNIX/Linux applications. In your case, these reasons don't apply. Additionally, the Sage 100 install program may see the symbolically linked folder for what it is, a location on a remote computer. Sage 100 will not install to a mapped drive, so it might not install to a linked folder.
If you are able to install, there will be a performance penalty with the symbolic link. Rather than the Windows OS communicating directly with hardware, it must contend with communicating with the OS on a remote computer.
Symbolic links were never intended to support Windows applications that are built upon accessing a host of shared files.
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Myron Stevenson
Consultant
Clearis Consulting, Inc
Duluth, MN
218-525-6720
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