Some disadvantages of open source code or software include inaccessibility to less computer-literate users and occasional incompatibility with more standard alternatives or even hardware. Often, there will also be little comprehensive support for users of open source code and software, although there are exceptions.
As a replacement to proprietary code and software in the workplace, open source alternatives may be especially problematic. People who are used to the interface and features of software, such as Microsoft Office, are likely to find it difficult to get used to open source equivalents, such as Apache OpenOffice. It is also common for files created within the latter to be incompatible with the former, making it hard to share files across platforms.