Instead of searching "skachat" (download) for a single DLL file—which is a common way to accidentally download malware—try these safer methods:
Knowing the specific app can help me give you the exact folder path or fix. skachat programmu play dll
Files downloaded from these sites are often outdated, incompatible, or bundled with malware. If you must download the file manually, only do so if the software developer provides a direct link. Instead of searching "skachat" (download) for a single